Superadiabatic quantum friction suppression in finite-time thermodynamics
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 mean work and its adiabatic value.
- Publication:
-
Science Advances
- Pub Date:
- April 2018
- DOI:
- 10.1126/sciadv.aar5909
- arXiv:
- arXiv:1711.00650
- Bibcode:
- 2018SciA....4.5909D
- Keywords:
-
- Condensed Matter - Quantum Gases;
- Physics - Atomic Physics;
- Quantum Physics
- E-Print:
- 13 pages, 9 figures