Suppressing nonadiabatic transitions during adiabatic generation of highly entangled states in bosonic Josephson junctions
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DOI: 10.1103/physreva.100.043619
Abstract: We study suppression of nonadiabatic transitions during adiabatic generation of a cat state and a spin squeezed state in a bosonic Josephson junction. In order to minimize the adiabatic error, we use quantum adiabatic brachistochrone,… read more here.
Keywords: transitions adiabatic; bosonic josephson; adiabatic generation; state ... See more keywords
Bounds for nonadiabatic transitions
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DOI: 10.1103/physreva.102.012216
Abstract: We discuss bounds for nonadiabatic transitions from the viewpoints of the adiabatic perturbation theory and the quantum speed limit. We show that the amount of nonadiabatic transitions from the $n$th level to the $m$th level… read more here.
Keywords: bounds nonadiabatic; nonadiabatic transitions;
Nonadiabatic transitions in Landau-Zener grids: Integrability and semiclassical theory
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DOI: 10.1103/physrevb.103.144301
Abstract: We demonstrate that the general model of a linearly time-dependent crossing of two energy bands is integrable. Namely, the Hamiltonian of this model has a quadratically time-dependent commuting operator. We apply this property to four-state… read more here.
Keywords: landau zener; integrability; semiclassical theory; nonadiabatic transitions ... See more keywords