Phys. Rev. A 79, 051402(R) (2009) [4 pages]

Demonstration of a multipulse interferometer for quantum kicked-rotor studies

Abstract

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A. Tonyushkin^*, S. Wu^†, and M. Prentiss
Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA

Received 11 June 2008; published 27 May 2009

We implemented a multipulse interferometer scheme that allows us to study a quantum kicked rotor by observing dephasing of momentum coherence. Our study shows that momentum coherence can be nearly perfectly preserved under conditions where the mean energy as a function of the kick number is known to increase without bound. The accompanying width narrowing of these coherences may provide a new method for accurate measurement of the recoil frequency.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.79.051402

DOI:

10.1103/PhysRevA.79.051402

PACS:

32.80.Qk, 03.75.Dg, 05.45.Gg, 37.25.+k

^*alexei@nyu.edu

^†Present address: NIST, Gaithersburg, MD 20899.

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Phys. Rev. A 79, 051402(R) (2009) [4 pages]

Demonstration of a multipulse interferometer for quantum kicked-rotor studies