Mach-Zehnder interferometry with interacting trapped Bose-Einstein condensates
Journal Article
·
· Physical Review. A
- Institut fuer Physik, Karl-Franzens-Universitaet Graz, 8010 Graz (Austria)
- Vienna Center for Quantum Science and Technology, Atominstitut, Technische Universitaet Wien, 1020 Vienna (Austria)
- INO-CNR BEC Center and Dipartimento di Fisica, Universita di Trento, 38123 Povo (Italy)
We theoretically analyze a Mach-Zehnder interferometer with trapped condensates and find that it is surprisingly stable against the nonlinearity induced by interparticle interactions. The phase sensitivity, which we study for number-squeezed input states, can overcome the shot noise limit and be increased up to the Heisenberg limit provided that a Bayesian or maximum-likelihood phase estimation strategy is used. We finally demonstrate the robustness of the Mach-Zehnder interferometer in the presence of interactions against condensate oscillations and a realistic atom-counting error.
- OSTI ID:
- 22075517
- Journal Information:
- Physical Review. A, Vol. 84, Issue 2; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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