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Mach-Zehnder interferometer for in-situ characterization of atom traps
Alexander Wolf, Maxim A. Efremov·February 24, 2026
Quantum Physics
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Abstract
Manipulating cold atoms in traps is a key tool for numerous realizations of quantum simulators and quantum sensors. They require accurate modeling and characterization of the underlying trapping potentials. We introduce a technique based on the Mach-Zehnder interferometer for in-situ characterization of weakly anharmonic potentials. By simulating the interferometer in an optical dipole trap, we can accurately determine its trap frequency and upper bounds onto anharmonicity magnitudes.