Phys. Rev. Lett. 97, 150402 (2006) [4 pages]Adiabatic Mach-Zehnder Interferometry on a Quantized Bose-Josephson JunctionSee Also: Publisher's Note Received 15 March 2006; published 10 October 2006; corrected 13 October 2006 We propose a scheme to achieve Mach-Zehnder interferometry using a quantized Bose-Josephson junction with a negative charging energy. The quantum adiabatic evolution through a dynamical bifurcation is used to accomplish the beam splitting and recombination. The negative charging energy ensures the existence of a path-entangled state which enhances the phase measurement precision to the Heisenberg limit. A feasible detection procedure is also presented. The scheme should be realizable with current technology. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.97.150402
DOI:
10.1103/PhysRevLett.97.150402
PACS:
03.75.Dg, 03.75.Gg, 39.20.+q
See AlsoPublisher's Note: Chaohong Lee, Publisher’s Note: Adiabatic Mach-Zehnder Interferometry on a Quantized Bose-Josephson Junction [Phys. Rev. Lett. 97, 150402 (2006)], Phys. Rev. Lett. 97, 169902 (2006). |
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