Universal Work Fluctuations during Shortcuts To Adiabaticity by Counterdiabatic Driving
arXiv:1609.08889 · doi:10.1103/PhysRevLett.118.100602
Abstract
Counterdiabatic driving (CD) exploits auxiliary control fields to tailor the nonequilibrium dynamics of a quantum system, making possible the suppression of dissipated work in finite-time thermodynamics and the engineering of optimal thermal machines with no friction. We show that while the mean work done by the auxiliary controls vanishes, CD leads to a broadening of the work distribution. We derive a fundamental inequality that relates nonequilibrium work fluctuations to the operation time and quantifies the thermodynamic cost of CD in both critical and noncritical systems.
5+3 pages, 3 figures
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