paper

Adiabatic tracking of quantum many-body dynamics

arXiv:1408.0524 · doi:10.1103/PhysRevA.90.060301

Abstract

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 few-body short-range interactions is shown to generate an effectively adiabatic dynamics.

Slightly improved version as published in Phys. Rev. A Rapid Communication

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