Experimental investigation of early-time diffusion in the quantum kicked rotor using a Bose-Einstein condensate

G. J. Duffy; S. Parkins; T. Müller; M. Sadgrove; R. Leonhardt; A. C. Wilson

doi:10.1103/PhysRevE.70.056206

Experimental investigation of early-time diffusion in the quantum kicked rotor using a Bose-Einstein condensate

G. J. Duffy, S. Parkins, T. Müller, M. Sadgrove, R. Leonhardt, A. C. Wilson

Department of Physics

Research output: Contribution to journal › Article › peer-review

54 Citations (Scopus)

Abstract

We report measurements of the early-time momentum diffusion for the atom-optical delta-kicked rotor. In this experiment a Bose-Einstein condensate provides a source of ultracold atoms with an ultranarrow initial momentum distribution, which is then subjected to periodic pulses (or “kicks”) using an intense far-detuned optical standing wave. We characterize the effect of varying the effective Planck’s constant for the system, while keeping all other parameters fixed. The observed behavior includes both quantum resonances (ballistic energy growth) and antiresonances (re-establishment of the initial state). Our experimental results are compared with theoretical predictions.

Original language	English
Pages (from-to)	7
Number of pages	1
Journal	Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume	70
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevE.70.056206
Publication status	Published - 2004

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10.1103/PhysRevE.70.056206

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title = "Experimental investigation of early-time diffusion in the quantum kicked rotor using a Bose-Einstein condensate",

abstract = "We report measurements of the early-time momentum diffusion for the atom-optical delta-kicked rotor. In this experiment a Bose-Einstein condensate provides a source of ultracold atoms with an ultranarrow initial momentum distribution, which is then subjected to periodic pulses (or “kicks”) using an intense far-detuned optical standing wave. We characterize the effect of varying the effective Planck{\textquoteright}s constant for the system, while keeping all other parameters fixed. The observed behavior includes both quantum resonances (ballistic energy growth) and antiresonances (re-establishment of the initial state). Our experimental results are compared with theoretical predictions.",

author = "Duffy, {G. J.} and S. Parkins and T. M{\"u}ller and M. Sadgrove and R. Leonhardt and Wilson, {A. C.}",

note = "Funding Information: The authors thank A. Daley for help with initial calculations. We acknowledge the support of the Marsden Fund of the Royal Society of New Zealand through Grant Nos. 02UOO910 and UOA016.",

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AU - Duffy, G. J.

AU - Parkins, S.

AU - Müller, T.

AU - Sadgrove, M.

AU - Leonhardt, R.

AU - Wilson, A. C.

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Experimental investigation of early-time diffusion in the quantum kicked rotor using a Bose-Einstein condensate

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