Fast quasiadiabatic dynamics

S. Martínez-Garaot, A. Ruschhaupt, J. Gillet, Th. Busch, J. G. Muga
2015 Physical Review A. Atomic, Molecular, and Optical Physics  
We work out the theory and applications of a fast quasi-adiabatic approach to speed up slow adiabatic manipulations of quantum systems by driving a control parameter as near to the adiabatic limit as possible over the entire protocol duration. Specifically, we show that the population inversion in a two-level system, the splitting and cotunneling of two-interacting bosons, and the stirring of a Tonks-Girardeau gas on a ring to achieve mesoscopic superpositions of many-body rotating and non-rotating states, can be significantly speeded up.
doi:10.1103/physreva.92.043406 fatcat:6bpka7wudvbz7addc2f54f7654