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Shortcuts to adiabaticity
E. Torrontegui, S. Ibáñez, S. Martínez-Garaot +6
Quantum adiabatic processes -that keep constant the populations in the instantaneous eigenbasis of a time-dependent Hamiltonian- are very useful to prepare and manipulate states, b…
Engineering fast and stable splitting of matter waves
E. Torrontegui, S. Martínez-Garaot, M. Modugno +2
When attempting to split coherent cold atom clouds or a Bose-Einstein condensate (BEC) by bifurcation of the trap into a double well, slow adiabatic following is unstable with resp…
Shortcuts to adiabaticity: fast-forward approach
E. Torrontegui, S. Martínez-Garaot, A. Ruschhaupt +1
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 formali…