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12-15
2016
Quantum Journal Club: Description of quantum coherence in thermodynamic processes requires constraints beyond free energy
Abstract: Recent studies have developed fundamental limitations on nanoscale thermodynamics, in terms of a set of independent free energy relations. Here we show that free energy relations cannot pro...
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12-08
2016
Quantum Journal Club: Josephson effect in fermionic superfluids across the BEC-BCS crossover
Abstract: The Josephson effect is a macroscopic quantum phenomenon that reveals the broken symmetry associated with any superfluid state. Here we report on the observation of the Josephson effect bet...
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12-08
2016
Quantum Journal Club: Storage Enhanced Nonlinearities in a Cold Atomic Rydberg Ensemble
Abstract: The combination of electromagnetically induced transparency with the nonlinear interaction between Rydberg atoms provides an effective interaction between photons. In this Letter, we invest...
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12-01
2016
Quantum Journal Club: Parallel Transport Quantum Logic Gates with Trapped Ions
Abstract: We demonstrate single-qubit operations by transporting a beryllium ion with a controlled velocity through a stationary laser beam. We use these to perform coherent sequences of quantum oper...
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12-01
2016
Quantum Journal Club: Micromachined integrated quantum circuit containing a superconducting qubit
Abstract: We present a device demonstrating a lithographically patterned transmon integrated with a micromachined cavity resonator. Our two-cavity, one-qubit device is a multilayer microwave integrat...
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12-01
2016
Quantum Journal Club: Controlling spin relaxation with a cavity
Abstract: Spontaneous emission of radiation is one of the fundamental mechanisms by which an excited quantum system returns to equilibrium. For spins, however, spontaneous emission is generally negli...