Adiabatic tracking of quantum many-body dynamics
Hamed SaberiDepartment of Optics, Faculty of Science, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech RepublicTomáš 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
Аннотация
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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