Superadiabatic quantum friction suppression in finite-time thermodynamics

Sci Adv. 2018 Apr 27;4(4):eaar5909. doi: 10.1126/sciadv.aar5909. eCollection 2018 Apr.

Abstract

Optimal performance of thermal machines is reached by suppressing friction. Friction in quantum thermodynamics results from fast driving schemes that generate nonadiabatic excitations. The far-from-equilibrium dynamics of quantum devices can be tailored by shortcuts to adiabaticity to suppress quantum friction. We experimentally demonstrate friction-free superadiabatic strokes with a trapped unitary Fermi gas as a working substance and establish the equivalence between the superadiabatic work and its adiabatic value.

Publication types

  • Research Support, Non-U.S. Gov't