502 research outputs found
Fast-forward scaling in a finite-dimensional Hilbert space
Time evolution of quantum systems is accelerated by the fast-forward scaling.
We reformulate the method to study systems in a finite-dimensional Hilbert
space. For several simple systems, we explicitly construct the acceleration
potential. We also use our formulation to accelerate the adiabatic dynamics.
Applying the method to the transitionless quantum driving, we find that the
fast-forward potential can be understood as a counterdiabatic term.Comment: 7 pages, 5 figures, revise
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