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arxiv: 1408.0524 · v2 · pith:PKMHNO2Vnew · submitted 2014-08-03 · 🪐 quant-ph · cond-mat.mes-hall· cond-mat.stat-mech

Adiabatic tracking of quantum many-body dynamics

classification 🪐 quant-ph cond-mat.mes-hallcond-mat.stat-mech
keywords dynamicsinteractionsadiabaticauxiliarycounterdiabaticdrivingmany-bodyquantum
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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.

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