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Phys. Rev. Lett. 88, 100401 (2002) [4 pages]

Multimode Interferometer for Guided Matter Waves

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Erika Andersson1,*, Tommaso Calarco2, Ron Folman3, Mauritz Andersson4, Björn Hessmo5, and Jörg Schmiedmayer3
1Department of Physics, Royal Institute of Technology, SE-10044 Stockholm, Sweden
2Institut für Theoretische Physik, Universität Innsbruck, A-6020 Innsbruck, Austria and European Centre for Theoretical Studies in Nuclear Physics and Related Areas, 38050 Villazzano, (TN) Italy
3Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany
4Department of Quantum Chemistry, Uppsala University, S-75120 Uppsala, Sweden
5Department of Microelectronics and Information Technology, Royal Institute of Technology, S-164 40 Kista, Sweden

Received 24 July 2001; published 26 February 2002

Atoms can be trapped and guided with electromagnetic fields, using nanofabricated structures. We describe the fundamental features of an interferometer for guided matter waves, built of two combined Y-shaped beam splitters. We find that such a device is expected to exhibit high contrast fringes even in a multimode regime, analogous to a white light interferometer.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.100401
DOI:
10.1103/PhysRevLett.88.100401
PACS:
03.75.Be, 03.65.Nk

*Present address: Department of Physics and Applied Physics, University of Strathclyde, Glasgow G4 0NG, United Kingdom.

 
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