Resonant transfer of large momenta from finite-duration pulse sequences

Fekete, J; Chai, S; Gardiner, S.A.; Andersen, M.F.

doi:10.1103/physreva.95.033601

Resonant transfer of large momenta from finite-duration pulse sequences

Fekete, J; Chai, S; Gardiner, S.A.; Andersen, M.F.

Authors

J Fekete

S Chai

Professor Simon Gardiner s.a.gardiner@durham.ac.uk
Professor

M.F. Andersen

Abstract

We experimentally investigate the atom optics kicked particle at quantum resonance using finite duration kicks. Even though the underlying process is quantum interference, it can be well described by an ε -pseudoclassical model. The ε -pseudoclassical model agrees well with our experiments for a wide range of parameters. We investigate the parameters yielding maximal momentum transfer to the atoms and find that this occurs in the regime where neither the short pulse approximation nor the Bragg condition is valid. Nonetheless, the momentum transferred to the atoms can be predicted using a simple scaling law, which provides a powerful tool for choosing optimal experimental parameters. We demonstrate this in a measurement of the Talbot time (from which h / M can be deduced), in which we coherently split atomic wave functions into superpositions of momentum states that differ by 200 photon recoils. Our work may provide a convenient way to implement large momentum difference beam splitters in atom interferometers.

Citation

Fekete, J., Chai, S., Gardiner, S., & Andersen, M. (2017). Resonant transfer of large momenta from finite-duration pulse sequences. Physical Review A, 95(3), Article 033601. https://doi.org/10.1103/physreva.95.033601

Journal Article Type	Article
Acceptance Date	Jan 31, 2017
Online Publication Date	Mar 1, 2017
Publication Date	Mar 1, 2017
Deposit Date	Mar 13, 2017
Publicly Available Date	Mar 17, 2017
Journal	Physical Review A
Print ISSN	2469-9926
Electronic ISSN	2469-9934
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	95
Issue	3
Article Number	033601
DOI	https://doi.org/10.1103/physreva.95.033601
Related Public URLs	https://arxiv.org/abs/1609.08236

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