Adiabatic tracking of quantum many-body dynamics

作者:Saberi Hamed*; Opatrny Tomas; Molmer Klaus; del Campo Adolfo
来源:Physical Review A, 2014, 90(6): 060301.
DOI:10.1103/PhysRevA.90.060301

摘要

The nonadiabatic dynamics of a many-body system driven through a quantum critical point can be controlled using counterdiabatic driving, where the formation of excitations is suppressed by assisting the dynamics with auxiliary multiple-body nonlocal interactions. We propose an alternative scheme which circumvents practical challenges to realize shortcuts to adiabaticity in mesoscopic systems by tailoring the functional form of the auxiliary counterdiabatic interactions. A driving scheme resorting in short-range few-body interactions is shown to generate an effectively adiabatic dynamics.

  • 出版日期2014-12-1
  • 单位Los Alamos