About the Lehnert Group
In our group, we build electrical and electromechanical machines and coax them into exhibiting quantum behavior. We are motivated by asking: “what is the largest and most tangible object that can be in two places at once?” In addition, we seek to use these machines to store, process, and transmit information in an essentially quantum way. Finally, we develop measurement tools for sensing feeble forces and electrical signals at the limits imposed by quantum mechanics.
Electrical circuits and optical systems are both technology domains in which quantum information can be manipulated, stored, and transmitted. But there is presently no way to transmit quantum information between these domains, hindering the creation of a quantum network of superconducting quantum computers. We investigate the electro-optic transduction of quantum information to enable such a quantum network.
Several experiments searching for physics beyond the standard model now encounter quantum noise that limits their precision. We study ways to use quantum enhanced methods to circumvent these quantum limits.
Quantum computers are fundamentally digital machines, but their operation requires analog circuity that works in the quantum regime. We create and study innovative quantum electrical circuits.
Stories About Our Research
In the Spotlight
JILA and NIST Fellow, along with University of Colorado Professor Konrad Lehnert will be leading a project through the Department of Defense (DoD) competitive Multidisciplinary University Research Initiative (MURI) Program. CU Boulder was matched only by the Massachusetts Institute of Technology in receiving three MURI awards.
Konrad Lehnert becomes the 6th JILA Fellow elected as an American Association for the Advancement of Science (AAAS) Fellow by the Council of the AAAS.
JILA Fellow Konrad Lehnert has been awarded the Department of Defense’s most prestigious single-investigator award.
Dr. Benjamin Brubaker won the 2019 Mitsuyoshi Tanaka Dissertation Award in Experimental Particle Physics from the American Physics Society (APS). Dr. Brubaker is currently a postdoctoral research associate at JILA working with Dr. Konrad Lehnert. Brubaker completed his doctoral thesis work at Yale, where he made outstanding contributions to the design and construction of, and detailed the first results from, the HAYSTAC (Haloscope at Yale Sensitive to Axion Cold) dark matter experimental detector. Brubaker’s thesis reports a major milestone in the progress to detect hypothetical particles called axions, which are leading candidates for “cold dark matter.”