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Title: Adiabatic Mach-Zehnder Interferometry on a Quantized Bose-Josephson Junction

Journal Article · · Physical Review Letters
 [1]
  1. Nonlinear Physics Centre and ARC Centre of Excellence for Quantum-Atom Optics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200 (Australia)

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.

OSTI ID:
20860941
Journal Information:
Physical Review Letters, Vol. 97, Issue 15; Other Information: DOI: 10.1103/PhysRevLett.97.150402; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
Country of Publication:
United States
Language:
English