Past Events

Abstract: Quantum computers introduce a radically new paradigm of information processing and revolutionize our thinking about the world. However, designing and building quantum computers that operate properly even when some of their components malfunction and cause errors is a heroic endeavor. In this talk, I will explain how quantum error correction and the theory of fault tolerance are indispensable to achieve this task.

Abstract: Atomic clocks operating in the optical domain are now capable of measuring time at up to eighteen digits of precision, and fundamental limits offer significant potential for even higher performance. To reach this goal, the next-generation of optical lattice clocks will require more advanced control of lattice-trapped atomic samples. To this end, here we consider two novel laser cooling strategies that exploit the extensive atom-laser coherence possible with divalent atomic structure.

Abstract:

Abstract:

======

A115 Butcher Auditorium
Jennie Smoly Caruthers Biotechnology Building (JSCBB)
3415 Colorado Ave.
Boulder, CO 80303

Abstract: This talk is motivated by the question: why do we put so much effort and investment into quantum computing? A short answer is that we expect quantum advantages for practical problems. To achieve this goal, it is essential to reexamine existing experiments and propose new protocols for future quantum advantage experiments.

Abstract: 

We will be celebrating National Croissant Day on Monday, 1/30. Beginning at 10 am, there will be croissants in the h-bar for all JILAns to enjoy. Come chow down on some fluffy, flaky pastries with us to celebrate this obscure holiday!

Abstract - The speed at which quantum entanglement between qubits with short range interactions can be generated is limited by the Lieb-Robinson bound. Introducing longer range interactions relaxes this bound and entanglement can be generated at a faster rate. The speed limit for this has been explicitly found theoretically only for a two-qubit system and under the assumption of negligible single qubit gate time. We seek to demonstrate such a speed limit for entanglement experimentally using two superconducting transmon qubits.

Abstract:  Quantum metrology makes use of structured entanglement to perform measurements with greater precision than would be possible with only classically correlated particles. A paradigmatic example of such entanglement is spin squeezing, which is known to be dynamically generated by the celebrated one-axis-twisting model, corresponding to an all-to-all coupled Ising Hamiltonian.

Abstract: Simulating strongly interacting quantum systems is a difficult task: as a prominent example, solving the fundamental equations of the quantum chromodynamics theory of quarks and gluons requires non-perturbative approaches based on computationally-expensive Monte Carlo simulations. The need for alternative solutions that do not rely on Monte Carlo methods has recently motivated an increasing interest in the possible applications of quantum simulation and computation.

Abstract: