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arXiv · 1110.1429

Adiabatic Mach-Zehnder interferometer via an array of trapped ions

Yan-Min Hu·Mang Feng·Chaohong Lee
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Abstract

We explore the possibility of implementing a Heisenberg-limited Mach-Zehnder interferometry via an array of trapped ions, which obey a quantum Ising model within a transverse field. Based upon adiabatic processes of increasing the Ising interaction and then decreasing the transverse field, we demonstrate a perfect transition from paramagnetism to ferromagnetic states, which can be used as the beam splitter for the multi-ion Mach-Zehnder interferometry. The achieved NOON state of the ions enables the Heisenberg-limited interferometry. Using currently available techniques for ultracold ions, we discuss the experimental feasibility of our scheme with global operations.

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Yan-Min Hu, Mang Feng, Chaohong Lee. 2012-03-22. Adiabatic Mach-Zehnder interferometer via an array of trapped ions. https://doi.org/10.1103/physreva.85.043604

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