Torrontegui, E.; Martiınez-Garaot, S.; Ruschhaupt, A.; Muga, J.G.

2012

July

Physical Review A

Shortcuts to adiabaticity: Fast-forward approach

Published

()

86

013601

The “fast-forward”approach by Masuda and Nakamura generates driving potentials to accelerate slow quantum adiabatic dynamics. First we present a streamlined version of the formalism that produces themain results in a few steps. Then we show the connection between this approach and inverse engineering based on Lewis-Riesenfeld invariants. We identify in this manner applications in which the engineered potential does not depend on the initial state. Finally we discuss more general applications exemplified by wave splitting processes.