Superadiabatic quantum friction suppression in finite-time thermodynamics
POSTER
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.
S. Deng et al., Shortcuts to adiabaticity in the strongly-coupled regime: nonadiabatic control of a unitary Fermi gas, Phys. Rev. A 97, 013628 (2018)
S. Deng et al., Superadiabatic quantum friction suppression in finite-time thermodynamics, Science Advances 4, eaar5909 (2018)
P. Diao et al., Shortcuts to adiabaticity in Fermi gases, New J. Phys. 20, 105004 (2018)
S. Deng et al., Shortcuts to adiabaticity in the strongly-coupled regime: nonadiabatic control of a unitary Fermi gas, Phys. Rev. A 97, 013628 (2018)
S. Deng et al., Superadiabatic quantum friction suppression in finite-time thermodynamics, Science Advances 4, eaar5909 (2018)
P. Diao et al., Shortcuts to adiabaticity in Fermi gases, New J. Phys. 20, 105004 (2018)
*This research is supported by the National Key Research and Development Program of China (grant no.2017YFA0304201), National Natural Science Foundation of China (NSFC) (grant nos.11374101 and 91536112), Program of Shanghai Subject Chief Scientist (17XD1401500), UMass Boston (project P20150000029279) and the John Templeton Foundation.
Presenters
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Adolfo Del Campo
- University of Massachusetts Boston
- University of Massachusetts
- Physics, University of Massachusetts Boston