Adiabatic tracking of quantum many-body dynamics
Hamed SaberiDepartment of Physics and CeOPP, University of Paderborn, Warburger Straße 100, D-33098 Paderborn, GermanyTomáš OpatrnýDepartment of Optics, Faculty of Science, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech RepublicKlaus MølmerDepartment of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, DenmarkAdolfo del CampoCenter for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
2014en
ABI
Annotatsiya
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.
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