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APS » Journals » Phys. Rev. Lett. » Volume 104 » Issue 25
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Phys. Rev. Lett. 104, 255302 (2010) [4 pages]

Ramsey Interference in One-Dimensional Systems: The Full Distribution Function of Fringe Contrast as a Probe of Many-Body Dynamics

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Takuya Kitagawa1, Susanne Pielawa1, Adilet Imambekov2, Jörg Schmiedmayer3, Vladimir Gritsev4, and Eugene Demler1
1Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA
2Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
3Atominstitut, TU-Wien, Stadionallee 2, 1020 Vienna, Austria
4Physics Department, University of Fribourg, Chemin du Musee 3, 1700 Fribourg, Switzerland

Received 22 December 2009; revised 30 March 2010; published 24 June 2010

We theoretically analyze Ramsey interference experiments in one-dimensional quasicondensates and obtain explicit expressions for the time evolution of full distribution functions of fringe contrast. We show that distribution functions contain unique signatures of the many-body mechanism of decoherence. We argue that Ramsey interference experiments provide a powerful tool for analyzing strongly correlated nature of 1D interacting systems.

© 2010 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.104.255302
DOI:
10.1103/PhysRevLett.104.255302
PACS:
67.85.-d, 03.75.Dg
 
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