Adiabatic tracking of quantum many-body dynamics
Quantum Physics
2014-12-08 v2 Mesoscale and Nanoscale Physics
Statistical Mechanics
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.
Cite
@article{arxiv.1408.0524,
title = {Adiabatic tracking of quantum many-body dynamics},
author = {Hamed Saberi and Tomáš Opatrný and Klaus Mølmer and Adolfo del Campo},
journal= {arXiv preprint arXiv:1408.0524},
year = {2014}
}
Comments
Slightly improved version as published in Phys. Rev. A Rapid Communication