Adiabatic Mach-Zehnder Interferometry on a Quantized Bose-Josephson Junction | Zendy

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

Author(s) -

Chaohong Lee

Publication year - 2006

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.97.150402

Subject(s) - physics , adiabatic process , interferometry , josephson effect , mach–zehnder interferometer , quantum mechanics , heisenberg limit , limit (mathematics) , quantum , superconductivity , quantum computer , quantum network , mathematical analysis , mathematics

We propose a scheme to achieve a Mach-Zehnder interferometry using aquantized Bose-Josephson junction with negative charging energy. The quantumadiabatic evolution through a dynamical bifurcation is used to accomplish thebeam splitting and recombination. The negative charging energy ensures theexistence of a path-entangled state which enhances the phase measurementprecision to the Heisenberg limit. A feasible detection procedure is alsopresented. The scheme should be realizable with current technology.Comment: Revised version, 4 pages, 4 figures, Accepted for publication in Physical Review Letter

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