JILA Science Publications
Displaying 1 - 84 of 84
2024
Stable optomechanical Fabry-Pérot architecture in a continuous microwave-to-optical transducer
Maxwell Urmey, Sarang Mittal, Kazemi Adachi, Luca Talamo, Sarah Dickson, Sheng-Xiang Lin, Robert Delaney, Benjamin Brubaker, Jonathan Kindem, Nicholas Frattini, Konrad Lehnert, Cindy Regal, SPIE Quantum West 12911, 1291109 (2024).
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Maxwell Urmey, Sarang Mittal, Kazemi Adachi, Luca Talamo, Sarah Dickson, Sheng-Xiang Lin, Robert Delaney, Benjamin Brubaker, Jonathan Kindem, Nicholas Frattini, Konrad Lehnert, Cindy Regal, SPIE Quantum West 12911, 1291109 (2024).
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Annealing reduces Si3N4 microwave-frequency dielectric loss in superconducting resonators
Sarang Mittal, Kazemi Adachi, Nicholas Frattini, Maxwell Urmey, Sheng-Xiang Lin, Alec Emser, Cyril Metzger, Luca Talamo, Sarah Dickson, David Carlson, Scott Papp, Cindy Regal, Konrad Lehnert, Phys. Rev. Applied 21, 054044 (2024).
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Sarang Mittal, Kazemi Adachi, Nicholas Frattini, Maxwell Urmey, Sheng-Xiang Lin, Alec Emser, Cyril Metzger, Luca Talamo, Sarah Dickson, David Carlson, Scott Papp, Cindy Regal, Konrad Lehnert, Phys. Rev. Applied 21, 054044 (2024).
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2023
Integrating planar circuits with superconducting 3D microwave cavities using tunable low-loss couplers
Ziyi Zhao, Eva Gurra, Eric Rosenthal, Leila Vale, Gene Hilton, K. Lehnert, Applied Physics Letters 123, 014001 (2023).
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Ziyi Zhao, Eva Gurra, Eric Rosenthal, Leila Vale, Gene Hilton, K. Lehnert, Applied Physics Letters 123, 014001 (2023).
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Accelerated Weak Signal Search Using Mode Entanglement and State Swapping
Y. Jiang, E.P. Ruddy, K.O. Quinlan, M. Malnou, N.E. Frattini, K.W. Lehnert, PRX Quantum 4, 020302 (2023).
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Y. Jiang, E.P. Ruddy, K.O. Quinlan, M. Malnou, N.E. Frattini, K.W. Lehnert, PRX Quantum 4, 020302 (2023).
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New results from HAYSTAC s phase II operation with a squeezed state receiver
M. Jewell, A. Leder, K. Backes, Xiran Bai, K. van Bibber, B. Brubaker, S. Cahn, A. Droster, Maryam Esmat, Sumita Ghosh, Eleanor Graham, Gene Hilton, H. Jackson, Claire Laffan, S. Lamoreaux, K. Lehnert, S. Lewis, M. Malnou, R. Maruyama, D. Palken, N. Rapidis, E. Ruddy, M. Simanovskaia, Sukhman Singh, D. Speller, Leila Vale, H. Wang, Yuqi Zhu, Phys. Rev. D 107, 072007 (2023).
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M. Jewell, A. Leder, K. Backes, Xiran Bai, K. van Bibber, B. Brubaker, S. Cahn, A. Droster, Maryam Esmat, Sumita Ghosh, Eleanor Graham, Gene Hilton, H. Jackson, Claire Laffan, S. Lamoreaux, K. Lehnert, S. Lewis, M. Malnou, R. Maruyama, D. Palken, N. Rapidis, E. Ruddy, M. Simanovskaia, Sukhman Singh, D. Speller, Leila Vale, H. Wang, Yuqi Zhu, Phys. Rev. D 107, 072007 (2023).
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2022
Minimally diffracting quartz for ultra-low temperature surface acoustic wave resonators
A Emser, B Rose, L Sletten, Aramburu Sanchez, K Lehnert, Applied Physics Letters 121, 224001 (2022).
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A Emser, B Rose, L Sletten, Aramburu Sanchez, K Lehnert, Applied Physics Letters 121, 224001 (2022).
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Publication Highlights:
Editor's pick
Optomechanical Ground-State Cooling in a Continuous and Efficient Electro-Optic Transducer
Benjamin Brubaker, Jonathan Kindem, Maxwell Urmey, Sarang Mittal, Robert Delaney, Peter Burns, M. Vissers, Konrad Lehnert, Cindy Regal, Phys. Rev. X 12, 021062 (2022).
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Benjamin Brubaker, Jonathan Kindem, Maxwell Urmey, Sarang Mittal, Robert Delaney, Peter Burns, M. Vissers, Konrad Lehnert, Cindy Regal, Phys. Rev. X 12, 021062 (2022).
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Superconducting-qubit readout via low-backaction electro-optic transduction
Robert Delaney, Maxwell Urmey, Sarang Mittal, Benjamin Brubaker, Jonathan Kindem, Peter Burns, Cindy Regal, Konrad Lehnert, Nature 606, 489-493 (2022).
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Robert Delaney, Maxwell Urmey, Sarang Mittal, Benjamin Brubaker, Jonathan Kindem, Peter Burns, Cindy Regal, Konrad Lehnert, Nature 606, 489-493 (2022).
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Entanglement Thresholds of Doubly Parametric Quantum Transducers
Curtis Rau, Akira Kyle, Alex Kwiatkowski, Ezad Shojaee, John Teufel, Konrad Lehnert, Tasshi Dennis, Physical Review Applied 17, 044057 (2022).
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Curtis Rau, Akira Kyle, Alex Kwiatkowski, Ezad Shojaee, John Teufel, Konrad Lehnert, Tasshi Dennis, Physical Review Applied 17, 044057 (2022).
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Quantum enhanced metrology in the search for fundamental physical phenomena
Konrad Lehnert, SciPost Phys. Lect. Notes , 40 (2022).
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Konrad Lehnert, SciPost Phys. Lect. Notes , 40 (2022).
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2021
Cavity Entanglement and State Swapping to Accelerate the Search for Axion Dark Matter
K. Wurtz, Benjamin Brubaker, Y. Jiang, E. Ruddy, Daniel Palken, Konrad Lehnert, PRX Quantum 2, 040350 (2021).
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K. Wurtz, Benjamin Brubaker, Y. Jiang, E. Ruddy, Daniel Palken, Konrad Lehnert, PRX Quantum 2, 040350 (2021).
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Experimental Constraint on Axion-like Particle Coupling over Seven Orders of Magnitude in MassTanya Roussy, Daniel Palken, William Cairncross, Benjamin Brubaker, Daniel Gresh, Matt Grau, Kevin Cossel, Kia Ng, Yuval Shagam, Yan Zhou, Victor Flambaum, Konrad Lehnert, Jun Ye, Eric Cornell, Phys. Rev. Lett. 126, 171301 (2021).
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Efficient and Low-Backaction Quantum Measurement Using a Chip-Scale DetectorEric Rosenthal, Christian Schneider, Maxime Malnou, Ziyi Zhao, Felix Leditzky, Benjamin Chapman, Waltraut Wustmann, Xizheng Ma, Daniel Palken, Maximilian Zanner, Leila Vale, Gene Hilton, Jiansong Gao, Graeme Smith, Gerhard Kirchmair, Konrad Lehnert, Physical Review Letters 126, (2021).
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A quantum enhanced search for dark matter axions
K. Backes, Daniel Palken, Al Kenany, Benjamin Brubaker, S. Cahn, A. Droster, Gene Hilton, Sumita Ghosh, H. Jackson, S. Lamoreaux, A. Leder, Konrad Lehnert, S. Lewis, M. Malnou, R. Maruyama, N. Rapidis, M. Simanovskaia, Sukhman Singh, D. Speller, I. Urdinaran, Leila Vale, E. van Assendelft, K. van Bibber, H. Wang, Nature 590, 238-242 (2021).
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K. Backes, Daniel Palken, Al Kenany, Benjamin Brubaker, S. Cahn, A. Droster, Gene Hilton, Sumita Ghosh, H. Jackson, S. Lamoreaux, A. Leder, Konrad Lehnert, S. Lewis, M. Malnou, R. Maruyama, N. Rapidis, M. Simanovskaia, Sukhman Singh, D. Speller, I. Urdinaran, Leila Vale, E. van Assendelft, K. van Bibber, H. Wang, Nature 590, 238-242 (2021).
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Non-classical energy squeezing of a macroscopic mechanical oscillator
X. Ma, J. Viennot, S. Kotler, J. Teufel, Konrad Lehnert, Nature Physics 17, 322-326 (2021).
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X. Ma, J. Viennot, S. Kotler, J. Teufel, Konrad Lehnert, Nature Physics 17, 322-326 (2021).
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2020
Improved analysis framework for axion dark matter searches
Daniel Palken, Benjamin Brubaker, M. Malnou, Al Kenany, K. Backes, S. Cahn, Y. Gurevich, S. Lamoreaux, S. Lewis, R. Maruyama, N. Rapidis, J. Root, M. Simanovskaia, T. Shokair, Sukhman Singh, D. Speller, I. Urdinaran, K. van Bibber, L. Zhong, Konrad Lehnert, Physical Review D 101, 123011 (2020).
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Daniel Palken, Benjamin Brubaker, M. Malnou, Al Kenany, K. Backes, S. Cahn, Y. Gurevich, S. Lamoreaux, S. Lewis, R. Maruyama, N. Rapidis, J. Root, M. Simanovskaia, T. Shokair, Sukhman Singh, D. Speller, I. Urdinaran, K. van Bibber, L. Zhong, Konrad Lehnert, Physical Review D 101, 123011 (2020).
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Hybrid quantum systems with circuit quantum electrodynamics
A. Clerk, Konrad Lehnert, P. Bertet, J. Petta, Y. Nakamura, Nature Physics 16, 257-267 (2020).
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A. Clerk, Konrad Lehnert, P. Bertet, J. Petta, Y. Nakamura, Nature Physics 16, 257-267 (2020).
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2019
Measurement of Motion beyond the Quantum Limit by Transient Amplification
Robert Delaney, A. Reed, R. Andrews, Konrad Lehnert, Physical Review Letters 123, 183603 (2019).
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Robert Delaney, A. Reed, R. Andrews, Konrad Lehnert, Physical Review Letters 123, 183603 (2019).
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Putting the squeeze on axions
Karl van Bibber, Konrad Lehnert, Aaron Chou, Physics Today 72, 48-55 (2019).
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Karl van Bibber, Konrad Lehnert, Aaron Chou, Physics Today 72, 48-55 (2019).
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Resolving Phonon Fock States in a Multimode Cavity with a Double-Slit Qubit
Lucas Sletten, B. Moores, Jeremie Viennot, Konrad Lehnert, Physical Review X 9, 021056 (2019).
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Lucas Sletten, B. Moores, Jeremie Viennot, Konrad Lehnert, Physical Review X 9, 021056 (2019).
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Squeezed Vacuum Used to Accelerate the Search for a Weak Classical Signal
M. Malnou, Daniel Palken, Benjamin Brubaker, Leila Vale, Gene Hilton, Konrad Lehnert, Physical Review X 9, 021023 (2019).
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M. Malnou, Daniel Palken, Benjamin Brubaker, Leila Vale, Gene Hilton, Konrad Lehnert, Physical Review X 9, 021023 (2019).
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Design of an On-Chip Superconducting Microwave Circulator with Octave Bandwidth
Benjamin Chapman, Eric Rosenthal, Konrad Lehnert, Physical Review Applied 11, 044048 (2019).
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Benjamin Chapman, Eric Rosenthal, Konrad Lehnert, Physical Review Applied 11, 044048 (2019).
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2018
Phonon-Number-Sensitive Electromechanics
Jeremie Viennot, X. Ma, Konrad Lehnert, Physical Review Letters 121, (2018).
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Jeremie Viennot, X. Ma, Konrad Lehnert, Physical Review Letters 121, (2018).
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Harnessing electro-optic correlations in an efficient mechanical converter
Andrew Higginbotham, Peter Burns, Maxwell Urmey, R. Peterson, N. Kampel, Benjamin Brubaker, Graeme Smith, Konrad Lehnert, Cindy Regal, Nature Physics 7, 1038–1042 (2018).
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Andrew Higginbotham, Peter Burns, Maxwell Urmey, R. Peterson, N. Kampel, Benjamin Brubaker, Graeme Smith, Konrad Lehnert, Cindy Regal, Nature Physics 7, 1038–1042 (2018).
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Topological phase transition measured in a dissipative metamaterial
Eric Rosenthal, Nicole Ehrlich, Mark Rudner, Andrew Higginbotham, Konrad Lehnert, Physical Review B 97, (2018).
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Eric Rosenthal, Nicole Ehrlich, Mark Rudner, Andrew Higginbotham, Konrad Lehnert, Physical Review B 97, (2018).
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Cavity Quantum Acoustic Device in the Multimode Strong Coupling Regime
Bradley Moores, Lucas Sletten, Jeremie Viennot, Konrad Lehnert, Physical Review Letters 120, (2018).
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Bradley Moores, Lucas Sletten, Jeremie Viennot, Konrad Lehnert, Physical Review Letters 120, (2018).
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Results from phase 1 of the HAYSTAC microwave cavity axion experiment
L. Zhong, Al Kenany, M. Backes, Benjamin Brubaker, S.B. Cahn, G. Carosi, Y. Gurevich, F. Kindel, K. Lamoreaux, Konrad Lehnert, M. Lewis, M. Malnou, H. Maruyama, Daniel Palken, N. Rapidis, R. Root, M. Simanovskaia, T. Shokair, H. Speller, I. Urdinaran, A. van Bibber, Physical Review D 9731, (2018).
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L. Zhong, Al Kenany, M. Backes, Benjamin Brubaker, S.B. Cahn, G. Carosi, Y. Gurevich, F. Kindel, K. Lamoreaux, Konrad Lehnert, M. Lewis, M. Malnou, H. Maruyama, Daniel Palken, N. Rapidis, R. Root, M. Simanovskaia, T. Shokair, H. Speller, I. Urdinaran, A. van Bibber, Physical Review D 9731, (2018).
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Optimal Operation of a Josephson Parametric Amplifier for Vacuum Squeezing
M. Malnou, Daniel Palken, Leila Vale, Gene Hilton, Konrad Lehnert, Physical Review Applied 9, (2018).
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M. Malnou, Daniel Palken, Leila Vale, Gene Hilton, Konrad Lehnert, Physical Review Applied 9, (2018).
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2017
Widely Tunable On-Chip Microwave Circulator for Superconducting Quantum Circuits
Benjamin Chapman, Eric Rosenthal, Joseph Kerckhoff, Bradley Moores, Leila Vale, A. Mates, Gene Hilton, Kevin Lalumière, Alexandre Blais, Konrad Lehnert, Physical Review X 7, (2017).
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Benjamin Chapman, Eric Rosenthal, Joseph Kerckhoff, Bradley Moores, Leila Vale, A. Mates, Gene Hilton, Kevin Lalumière, Alexandre Blais, Konrad Lehnert, Physical Review X 7, (2017).
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Breaking Lorentz Reciprocity with Frequency Conversion and Delay
Eric Rosenthal, Benjamin Chapman, Andrew Higginbotham, Joseph Kerckhoff, Konrad Lehnert, Physical Review Letters 119431, 147703 (2017).
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Eric Rosenthal, Benjamin Chapman, Andrew Higginbotham, Joseph Kerckhoff, Konrad Lehnert, Physical Review Letters 119431, 147703 (2017).
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Faithful conversion of propagating quantum information to mechanical motion
A. Reed, K. Mayer, J. Teufel, L. Burkhart, W. Pfaff, M. Reagor, Lucas Sletten, X. Ma, R. Schoelkopf, Emanuel Knill, Konrad Lehnert, Nature Physics 13, (2017).
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A. Reed, K. Mayer, J. Teufel, L. Burkhart, W. Pfaff, M. Reagor, Lucas Sletten, X. Ma, R. Schoelkopf, Emanuel Knill, Konrad Lehnert, Nature Physics 13, (2017).
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Reconfigurable re-entrant cavity for wireless coupling to an electro-optomechanical device
Tim Menke, Peter Burns, Andrew Higginbotham, N. Kampel, R. Peterson, K. Cicak, R. Simmonds, Cindy Regal, Konrad Lehnert, Review of Scientific Instruments 88, 094701 (2017).
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Tim Menke, Peter Burns, Andrew Higginbotham, N. Kampel, R. Peterson, K. Cicak, R. Simmonds, Cindy Regal, Konrad Lehnert, Review of Scientific Instruments 88, 094701 (2017).
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Design and operational experience of a microwave cavity axion detector for the 20 - 100 μeV range
Al Kenany, M. Anil, K. Backes, Benjamin Brubaker, S.B. Cahn, G. Carosi, Y. Gurevich, W. Kindel, S. Lamoreaux, Konrad Lehnert, S. Lewis, M. Malnou, Daniel Palken, N. Rapidis, J. Root, M. Simanovskaia, T. Shokair, I. Urdinaran, Karl van Bibber, L. Zhong, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 854, 11-24 (2017).
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Al Kenany, M. Anil, K. Backes, Benjamin Brubaker, S.B. Cahn, G. Carosi, Y. Gurevich, W. Kindel, S. Lamoreaux, Konrad Lehnert, S. Lewis, M. Malnou, Daniel Palken, N. Rapidis, J. Root, M. Simanovskaia, T. Shokair, I. Urdinaran, Karl van Bibber, L. Zhong, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 854, 11-24 (2017).
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Improving Broadband Displacement Detection with Quantum Correlations
N. Kampel, W. Peterson, Ran Fischer, P.-L. Yu, K. Cicak, W. Simmonds, Konrad Lehnert, Cindy Regal, Physical Review X 7, 021008 (2017).
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N. Kampel, W. Peterson, Ran Fischer, P.-L. Yu, K. Cicak, W. Simmonds, Konrad Lehnert, Cindy Regal, Physical Review X 7, 021008 (2017).
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Single-sideband modulator for frequency domain multiplexing of superconducting qubit readout
Benjamin Chapman, Eric Rosenthal, Joseph Kerckhoff, Leila Vale, G. Hilton, Konrad Lehnert, Applied Physics Letters 110, 162601 (2017).
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Benjamin Chapman, Eric Rosenthal, Joseph Kerckhoff, Leila Vale, G. Hilton, Konrad Lehnert, Applied Physics Letters 110, 162601 (2017).
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First Results from a Microwave Cavity Axion Search at 24 μ eV
Benjamin Brubaker, L. Zhong, Y. Gurevich, S.B. Cahn, S. Lamoreaux, M. Simanovskaia, J. Root, M. Lewis, Al Kenany, M. Backes, I. Urdinaran, N. Rapidis, T. Shokair, Karl van Bibber, Daniel Palken, M. Malnou, W. Kindel, A. Anil, Konrad Lehnert, G. Carosi, Physical Review Letters 118, 061302 (2017).
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Benjamin Brubaker, L. Zhong, Y. Gurevich, S.B. Cahn, S. Lamoreaux, M. Simanovskaia, J. Root, M. Lewis, Al Kenany, M. Backes, I. Urdinaran, N. Rapidis, T. Shokair, Karl van Bibber, Daniel Palken, M. Malnou, W. Kindel, A. Anil, Konrad Lehnert, G. Carosi, Physical Review Letters 118, 061302 (2017).
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2016
General purpose multiplexing device for cryogenic microwave systems
Benjamin Chapman, Bradley Moores, Eric Rosenthal, Joseph Kerckhoff, Konrad Lehnert, Applied Physics Letters 108, 222602 (2016).
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Benjamin Chapman, Bradley Moores, Eric Rosenthal, Joseph Kerckhoff, Konrad Lehnert, Applied Physics Letters 108, 222602 (2016).
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Generation and efficient measurement of single photons from fixed-frequency superconducting qubits
W. Kindel, M. Schroer, Konrad Lehnert, Physical Review A 93, 033817 (2016).
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W. Kindel, M. Schroer, Konrad Lehnert, Physical Review A 93, 033817 (2016).
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Laser Cooling of a Micromechanical Membrane to the Quantum Backaction Limit
R. Peterson, T. Purdy, N. Kampel, R. Andrews, P.-L. Yu, Konrad Lehnert, Cindy Regal, Physical Review Letters 116, 063601 (2016).
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R. Peterson, T. Purdy, N. Kampel, R. Andrews, P.-L. Yu, Konrad Lehnert, Cindy Regal, Physical Review Letters 116, 063601 (2016).
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Publication Highlights:
Editor's Suggestion
Proposal to Test Bell's Inequality in Electromechanics
S. Hofer, Konrad Lehnert, K. Hammerer, Physical Review Letters 116, 070406 (2016).
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S. Hofer, Konrad Lehnert, K. Hammerer, Physical Review Letters 116, 070406 (2016).
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Closing a quantum feedback loop inside a cryostat: Autonomous state preparation and long-time memory of a superconducting qubit
C. Andersen, Joseph Kerckhoff, Konrad Lehnert, B. Chapman, K. Molmer, Physical Review A 93, 012346 (2016).
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C. Andersen, Joseph Kerckhoff, Konrad Lehnert, B. Chapman, K. Molmer, Physical Review A 93, 012346 (2016).
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2015
Quantum-enabled temporal and spectral mode conversion of microwave signals
R. Andrews, A. Reed, K. Cicak, J. Teufel, Konrad Lehnert, Nature Communications 6, 10021 (2015).
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R. Andrews, A. Reed, K. Cicak, J. Teufel, Konrad Lehnert, Nature Communications 6, 10021 (2015).
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On-Chip Superconducting Microwave Circulator from Synthetic Rotation
Joseph Kerckhoff, Kevin Lalumière, B. Chapman, Alexandre Blais, Konrad Lehnert, Physical Review Applied 4, (2015).
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Joseph Kerckhoff, Kevin Lalumière, B. Chapman, Alexandre Blais, Konrad Lehnert, Physical Review Applied 4, (2015).
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Generating and verifying entangled itinerant microwave fields with efficient and independent measurements
H. Ku, W. Kindel, F. Mallet, S. Glancy, K. Irwin, G. Hilton, Leila Vale, Konrad Lehnert, Physical Review A 91, 042305 (2015).
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H. Ku, W. Kindel, F. Mallet, S. Glancy, K. Irwin, G. Hilton, Leila Vale, Konrad Lehnert, Physical Review A 91, 042305 (2015).
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Connecting microwave and optical frequencies with a vibrational degree of freedom
R. Anderson, R. Peterson, T. Purdy, K. Cicak, R. Simmonds, Cindy Regal, Konrad Lehnert, SPIE , 934309 (2015).
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R. Anderson, R. Peterson, T. Purdy, K. Cicak, R. Simmonds, Cindy Regal, Konrad Lehnert, SPIE , 934309 (2015).
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2014
Future directions in the microwave cavity search for dark matter axions
T. Shokair, J. Root, Karl van Bibber, Benjamin Brubaker, Y. Gurevich, S.B. Cahn, S. Lamoreaux, M. Anil, Konrad Lehnert, B. Mitchell, A. Reed, G. Carosi, International Journal of Modern Physics A 29, 1443004 (2014).
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T. Shokair, J. Root, Karl van Bibber, Benjamin Brubaker, Y. Gurevich, S.B. Cahn, S. Lamoreaux, M. Anil, Konrad Lehnert, B. Mitchell, A. Reed, G. Carosi, International Journal of Modern Physics A 29, 1443004 (2014).
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Measuring a Topological Transition in an Artificial Spin-1/2 System
M. Schroer, M. Kolodrubetz, W. Kindel, M. Sandberg, J. Gao, M. Vissers, D. Pappas, Anatoli Polkovnikov, Konrad Lehnert, Physical Review Letters 113, 050402 (2014).
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M. Schroer, M. Kolodrubetz, W. Kindel, M. Sandberg, J. Gao, M. Vissers, D. Pappas, Anatoli Polkovnikov, Konrad Lehnert, Physical Review Letters 113, 050402 (2014).
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Bidirectional and efficient conversion between microwave and optical light
R. Anderson, R. Peterson, T. Purdy, K. Cicak, R. Simmonds, Cindy Regal, Konrad Lehnert, Nature Physics 10, 321-326 (2014).
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R. Anderson, R. Peterson, T. Purdy, K. Cicak, R. Simmonds, Cindy Regal, Konrad Lehnert, Nature Physics 10, 321-326 (2014).
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2013
Deterministic entanglement of superconducting qubits by parity measurement and feedback
D. Ristè, M. Dukalski, C. Watson, G. de Lange, M. Tiggelman, Ya. Blanter, Konrad Lehnert, R. Schouten, L. DiCarlo, Nature 502, 350-354 (2013).
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D. Ristè, M. Dukalski, C. Watson, G. de Lange, M. Tiggelman, Ya. Blanter, Konrad Lehnert, R. Schouten, L. DiCarlo, Nature 502, 350-354 (2013).
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Entangling Mechanical Motion with Microwave Fields
T. Palomaki, J. Teufel, R. Simmonds, Konrad Lehnert, Science 342, 710-713 (2013).
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T. Palomaki, J. Teufel, R. Simmonds, Konrad Lehnert, Science 342, 710-713 (2013).
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Analysis of single-photon and linear amplifier detectors for microwave cavity dark matter axion searches
S. Lamoreaux, Karl van Bibber, Konrad Lehnert, G. Carosi, Physical Review D 88, 035020 (2013).
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S. Lamoreaux, Karl van Bibber, Konrad Lehnert, G. Carosi, Physical Review D 88, 035020 (2013).
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Tunable Coupling to a Mechanical Oscillator Circuit Using a Coherent Feedback Network
Joseph Kerckhoff, R. Anderson, H.-S. Ku, W. Kindel, K. Cicak, R. Simmonds, Konrad Lehnert, Physical Review X 3, 021013 (2013).
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Joseph Kerckhoff, R. Anderson, H.-S. Ku, W. Kindel, K. Cicak, R. Simmonds, Konrad Lehnert, Physical Review X 3, 021013 (2013).
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Mechanical resonators for storage and transfer of electrical and optical quantum states
S. McGee, D. Meiser, Cindy Regal, Konrad Lehnert, Murray Holland, Physical Review A 87, 053818 (2013).
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S. McGee, D. Meiser, Cindy Regal, Konrad Lehnert, Murray Holland, Physical Review A 87, 053818 (2013).
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Millisecond charge-parity fluctuations and induced decoherence in a superconducting transmon qubit
D. Ristè, C. Bultink, M. Tiggelman, R. Schouten, Konrad Lehnert, L. DiCarlo, Nature Communications 4, 1913 (2013).
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D. Ristè, C. Bultink, M. Tiggelman, R. Schouten, Konrad Lehnert, L. DiCarlo, Nature Communications 4, 1913 (2013).
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Coherent state transfer between itinerant microwave fields and a mechanical oscillator
T. Palomaki, J. Harlow, J. Teufel, R. Simmonds, Konrad Lehnert, Nature 495, 210-214 (2013).
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T. Palomaki, J. Harlow, J. Teufel, R. Simmonds, Konrad Lehnert, Nature 495, 210-214 (2013).
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2012
Feedback Control of a Solid-State Qubit Using High-Fidelity Projective Measurement
D. Ristè, C. Bultink, Konrad Lehnert, L. DiCarlo, Physical Review Letters 109, 240502 (2012).
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D. Ristè, C. Bultink, Konrad Lehnert, L. DiCarlo, Physical Review Letters 109, 240502 (2012).
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Superconducting Microwave Multivibrator Produced by Coherent Feedback
Joseph Kerckhoff, Konrad Lehnert, Physical Review Letters 109, 153602 (2012).
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Joseph Kerckhoff, Konrad Lehnert, Physical Review Letters 109, 153602 (2012).
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Initialization by Measurement of a Superconducting Quantum Bit Circuit
D. Ristè, J. van Leeuwen, H.-S. Ku, Konrad Lehnert, L. DiCarlo, Physical Review Letters 109, 050507 (2012).
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D. Ristè, J. van Leeuwen, H.-S. Ku, Konrad Lehnert, L. DiCarlo, Physical Review Letters 109, 050507 (2012).
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Flux-Ramp Modulation for SQUID Multiplexing
J. Mates, K. Irwin, Leila Vale, G. Hilton, J. Gao, Konrad Lehnert, Journal of Low Temperature Physics 167, 707-712 (2012).
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J. Mates, K. Irwin, Leila Vale, G. Hilton, J. Gao, Konrad Lehnert, Journal of Low Temperature Physics 167, 707-712 (2012).
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2011
Non-contact and all-electrical method for monitoring the motion of semiconducting nanowires
S. Hoch, J. Montague, V. Bright, C. Rogers, K. Bertness, J. Teufel, Konrad Lehnert, Applied Physics Letters 99, 053101 (2011).
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S. Hoch, J. Montague, V. Bright, C. Rogers, K. Bertness, J. Teufel, Konrad Lehnert, Applied Physics Letters 99, 053101 (2011).
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Sideband cooling of micromechanical motion to the quantum ground state
J. Teufel, T. Donner, Dale Li, J. Harlow, M. Allman, K. Cicak, A. Sirois, J. Whittaker, Konrad Lehnert, R. Simmonds, Nature 475, 359-363 (2011).
View Record | DOI
J. Teufel, T. Donner, Dale Li, J. Harlow, M. Allman, K. Cicak, A. Sirois, J. Whittaker, Konrad Lehnert, R. Simmonds, Nature 475, 359-363 (2011).
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Design and Testing of Superconducting Microwave Passive Components for Quantum Information Processing
H.-S. Ku, F. Mallet, Leila Vale, K. Irwin, S. Russek, G. Hilton, Konrad Lehnert, IEEE Transactions on Applied Superconductivity 21, 452-455 (2011).
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H.-S. Ku, F. Mallet, Leila Vale, K. Irwin, S. Russek, G. Hilton, Konrad Lehnert, IEEE Transactions on Applied Superconductivity 21, 452-455 (2011).
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Quantum State Tomography of an Itinerant Squeezed Microwave Field
F. Mallet, M. Castellanos-Beltran, H.-S. Ku, S. Glancy, Emanuel Knill, K. Irwin, G. Hilton, Leila Vale, Konrad Lehnert, Physical Review Letters 106, 220502 (2011).
View Record | DOI
F. Mallet, M. Castellanos-Beltran, H.-S. Ku, S. Glancy, Emanuel Knill, K. Irwin, G. Hilton, Leila Vale, Konrad Lehnert, Physical Review Letters 106, 220502 (2011).
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Strongly quadrature-dependent noise in superconducting microresonators measured at the vacuum-noise limit
J. Gao, Leila Vale, J. Mates, D. Schmidt, G. Hilton, K. Irwin, F. Mallet, M. Castellanos-Beltran, Konrad Lehnert, J. Zmuidzinas, H. Leduc, Applied Physics Letters 98, 232508 (2011).
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J. Gao, Leila Vale, J. Mates, D. Schmidt, G. Hilton, K. Irwin, F. Mallet, M. Castellanos-Beltran, Konrad Lehnert, J. Zmuidzinas, H. Leduc, Applied Physics Letters 98, 232508 (2011).
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From cavity electromechanics to cavity optomechanics
Cindy Regal, Konrad Lehnert, Journal of Physics: Conference Series 264, 012025 (2011).
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Cindy Regal, Konrad Lehnert, Journal of Physics: Conference Series 264, 012025 (2011).
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2009
Nanomechanical motion measured with an imprecision below that at the standard quantum limit
J. Teufel, T. Donner, M. Castellanos-Beltran, J. Harlow, Konrad Lehnert, Nature Nanotechnology 4, 820-823 (2009).
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J. Teufel, T. Donner, M. Castellanos-Beltran, J. Harlow, Konrad Lehnert, Nature Nanotechnology 4, 820-823 (2009).
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Bandwidth and Dynamic Range of a Widely Tunable Josephson Parametric Amplifier
M. Castellanos-Beltran, K. Irwin, Leila Vale, G. Hilton, Konrad Lehnert, IEEE Transactions on Applied Superconductivity 19, 944-947 (2009).
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M. Castellanos-Beltran, K. Irwin, Leila Vale, G. Hilton, Konrad Lehnert, IEEE Transactions on Applied Superconductivity 19, 944-947 (2009).
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2008
Amplification and squeezing of quantum noise with a tunable Josephson metamaterial
M. Castellanos-Beltran, K. Irwin, G. Hilton, Leila Vale, Konrad Lehnert, Nature Physics 4, 929-931 (2008).
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M. Castellanos-Beltran, K. Irwin, G. Hilton, Leila Vale, Konrad Lehnert, Nature Physics 4, 929-931 (2008).
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Dynamical Backaction of Microwave Fields on a Nanomechanical Oscillator
J. Teufel, J. Harlow, Cindy Regal, Konrad Lehnert, Physical Review Letters 101, 197203 (2008).
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J. Teufel, J. Harlow, Cindy Regal, Konrad Lehnert, Physical Review Letters 101, 197203 (2008).
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Prospects for cooling nanomechanical motion by coupling to a superconducting microwave resonator
J. Teufel, Cindy Regal, Konrad Lehnert, New Journal of Physics 10, 095002 (2008).
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J. Teufel, Cindy Regal, Konrad Lehnert, New Journal of Physics 10, 095002 (2008).
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Measuring nanomechanical motion with a microwave cavity interferometer
Cindy Regal, J. Teufel, Konrad Lehnert, Nature Physics 4, 555-560 (2008).
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Cindy Regal, J. Teufel, Konrad Lehnert, Nature Physics 4, 555-560 (2008).
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Demonstration of a multiplexer of dissipationless superconducting quantum interference devices
J. Mates, G. Hilton, K. Irwin, Leila Vale, Konrad Lehnert, Applied Physics Letters 92, 023514 (2008).
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J. Mates, G. Hilton, K. Irwin, Leila Vale, Konrad Lehnert, Applied Physics Letters 92, 023514 (2008).
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2007
Widely tunable parametric amplifier based on a superconducting quantum interference device array resonator
M. Castellanos-Beltran, Konrad Lehnert, Applied Physics Letters 91, 083509 (2007).
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M. Castellanos-Beltran, Konrad Lehnert, Applied Physics Letters 91, 083509 (2007).
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Evaluation of a Microwave SQUID Multiplexer Prototype
Konrad Lehnert, K. Irwin, M. Castellanos-Beltran, J. Mates, Leila Vale, IEEE Transactions on Applied Superconductivity 17, 705-709 (2007).
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Konrad Lehnert, K. Irwin, M. Castellanos-Beltran, J. Mates, Leila Vale, IEEE Transactions on Applied Superconductivity 17, 705-709 (2007).
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Intrinsic Noise Properties of Atomic Point Contact Displacement Detectors
N. Flowers-Jacobs, D. Schmidt, Konrad Lehnert, Physical Review Letters 98, (2007).
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N. Flowers-Jacobs, D. Schmidt, Konrad Lehnert, Physical Review Letters 98, (2007).
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2006
Microwave SQUID multiplexers for low-temperature detectors
K. Irwin, J. Beall, W. Doriese, W. Duncan, G. Hilton, J. Mates, C. Reintsema, D. Schmidt, J. Ullom, Leila Vale, B. Zink, Konrad Lehnert, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 559, 802-804 (2006).
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K. Irwin, J. Beall, W. Doriese, W. Duncan, G. Hilton, J. Mates, C. Reintsema, D. Schmidt, J. Ullom, Leila Vale, B. Zink, Konrad Lehnert, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 559, 802-804 (2006).
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Normal metal-insulator-superconductor junction technology for bolometers
D. Schmidt, W. Duncan, K. Irwin, Konrad Lehnert, N. Miller, J. Ullom, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 559, 516-518 (2006).
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D. Schmidt, W. Duncan, K. Irwin, Konrad Lehnert, N. Miller, J. Ullom, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 559, 516-518 (2006).
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2005
Single-electron transistor backaction on the single-electron box
B. Turek, Konrad Lehnert, A. Clerk, D. Gunnarsson, K. Bladh, P. Delsing, R. Schoelkopf, Physical Review B 71, (2005).
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B. Turek, Konrad Lehnert, A. Clerk, D. Gunnarsson, K. Bladh, P. Delsing, R. Schoelkopf, Physical Review B 71, (2005).
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A superconductor-insulator-normal metal bolometer with microwave readout suitable for large-format arrays
D. Schmidt, Konrad Lehnert, A. Clark, W. Duncan, K. Irwin, N. Miller, J. Ullom, Applied Physics Letters 86, 053505 (2005).
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D. Schmidt, Konrad Lehnert, A. Clark, W. Duncan, K. Irwin, N. Miller, J. Ullom, Applied Physics Letters 86, 053505 (2005).
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2004
Microwave SQUID multiplexer
K. Irwin, Konrad Lehnert, Applied Physics Letters 85, 2107 (2004).
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K. Irwin, Konrad Lehnert, Applied Physics Letters 85, 2107 (2004).
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Noise performance of the radio-frequency single-electron transistor
R. Schoelkopf, L. Spietz, Konrad Lehnert, Leif Roschier, P. Hakonen, K. Bladh, P. Delsing, Journal of Applied Physics 95, 1274 (2004).
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R. Schoelkopf, L. Spietz, Konrad Lehnert, Leif Roschier, P. Hakonen, K. Bladh, P. Delsing, Journal of Applied Physics 95, 1274 (2004).
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2003
Quantum Charge Fluctuations and the Polarizability of the Single-Electron Box
Konrad Lehnert, B. Turek, K. Bladh, L. Spietz, D. Gunnarsson, P. Delsing, R. Schoelkopf, Physical Review Letters 91, (2003).
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Konrad Lehnert, B. Turek, K. Bladh, L. Spietz, D. Gunnarsson, P. Delsing, R. Schoelkopf, Physical Review Letters 91, (2003).
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Primary Electronic Thermometry Using the Shot Noise of a Tunnel Junction
L. Spietz, Konrad Lehnert, I. Siddiqi, R. Schoelkopf, Science 300, 1929-1932 (2003).
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L. Spietz, Konrad Lehnert, I. Siddiqi, R. Schoelkopf, Science 300, 1929-1932 (2003).
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Measurement of the Excited-State Lifetime of a Microelectronic Circuit
Konrad Lehnert, K. Bladh, L. Spietz, D. Gunnarsson, D. Schuster, P. Delsing, R. Schoelkopf, Physical Review Letters 90, (2003).
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Konrad Lehnert, K. Bladh, L. Spietz, D. Gunnarsson, D. Schuster, P. Delsing, R. Schoelkopf, Physical Review Letters 90, (2003).
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