5 papers
Adaptive, symmetry-informed Bayesian metrology for precise quantum technology measurements
Matt Overton, Jesús Rubio, Nathan Cooper +4
High precision measurements are essential to solve major scientific and technological challenges, from gravitational wave detection to healthcare diagnostics. Quantum sensing deliv…
Autonomous conversion of particle-exchange to quantum self-oscillations
Sofia Sevitz, Federico Cerisola, Karen V. Hovhannisyan +1
Particle-exchange machines utilize electronic transport to continuously transfer heat between fermionic reservoirs. Here, we couple a quantum mechanical resonator to a particle-exc…
Extracting work from coherence in a two-mode Bose-Einstein condensate
L. A. Williamson, F. Cerisola, J. Anders +1
We show how work can be extracted from number-state coherence in a two-mode Bose-Einstein condensate. With careful tuning of parameters, a sequence of thermodynamically reversible…
Correlations enable lossless ergotropy transport
Rick P. A. Simon, Janet Anders, Karen V. Hovhannisyan
"A battery powers a device" can be read as "work stored in the battery is being transported to the device." In quantum batteries, the total amount of stored work can be measured by…
Concentration of ergotropy in many-body systems
Karen V. Hovhannisyan, Rick P. A. Simon, Janet Anders
Ergotropy -- the maximal amount of unitarily extractable work -- measures the ``charge level'' of quantum batteries. We prove that in large many-body batteries ergotropy exhibits a…