Superadiabatic quantum friction suppression in finite-time thermodynamics.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 29719865.
- Also identified by DOI 10.1126/sciadv.aar5909 and PMC identifier 5922798.
- Licence recorded as CC BY-NC.
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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.