arXiv:1210.5656 · Physical Review E

Fidelity of the quantum δ -kicked accelerator

Rajendra K. Shrestha, Sandro Wimberger, Jiating Ni, Wa Kun Lam, G. S. Summy

Published Feb 27, 2013• 17 citations

Abstract

The sensitivity of the fidelity in the kicked rotor to an acceleration is experimentally and theoretically investigated. We used a Bose-Einstein condensate exposed to a sequence of pulses from a standing light wave followed by a single reversal pulse in which the standing wave was shifted by half a wavelength. The features of the fidelity "spectrum" as a function of acceleration are presented. This work may find applications in the measurement of temperature of an ultracold atomic sample.

DOI: 10.1103/physreve.87.020902

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