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Title: Shortcuts to adiabaticity in Fermi gases

Journal Article · · New Journal of Physics
 [1];  [2];  [1];  [1];  [3];  [4];  [2]
  1. East China Normal University, Shanghai (China)
  2. East China Normal University, Shanghai (China); Shanxi University, Taiyuan (China)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); University of Massachusetts, Boston, MA (United States)

Shortcuts to adiabaticity (STA) provide an alternative to adiabatic protocols to guide the dynamics of the system of interest without the requirement of slow driving. We report the controlled speedup via STA of the nonadiabatic dynamics of a Fermi gas, both in the noninteracting and strongly coupled, unitary regimes. Friction-free superadiabatic expansion strokes, with no residual excitations in the final state, are demonstrated in the unitary regime by engineering the modulation of the frequencies and aspect ratio of the harmonic trap. STA are also analyzed and implemented in the high-temperature regime, where the shear viscosity plays a pivotal role and the Fermi gas is described by viscous hydrodynamics.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1492613
Alternate ID(s):
OSTI ID: 22994841
Report Number(s):
LA-UR--18-25779; {"Journal ID: ISSN 1367-2630",""}
Journal Information:
New Journal of Physics, Journal Name: New Journal of Physics Journal Issue: 10 Vol. 20; ISSN 1367-2630
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (7)

Focus on Shortcuts to Adiabaticity journal May 2019
Focus on Shortcuts to Adiabaticity text January 2019
Floquet-Engineering Counterdiabatic Protocols in Quantum Many-Body Systems journal August 2019
Floquet-engineering counterdiabatic protocols in quantum many-body systems text January 2019
Work exchange, geometric magnetization and fluctuation-dissipation relations in a quantum dot under adiabatic magnetoelectric driving text January 2018
Work exchange, geometric magnetization, and fluctuation-dissipation relations in a quantum dot under adiabatic magnetoelectric driving journal March 2019
Power and efficiency of a thermal engine with a coherent bath journal September 2019

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