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Conferences > CLEO_FS > 2023 > FTu4A > FTu4A.8

Distributed phase sensing using two-mode squeezed states in a truncated SU(1,1) interferometer

Seongjin Hong, Matthew A. Feldman, Claire E. Marvinney, Michael Febbraro, Alberto M. Marino, and Raphael C. Pooser

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Abstract

We demonstrate distributed phase sensing with a truncated SU(1,1) interferometer through the measurement of a linear combination of two phases distributed between the two beams of a two-mode squeezed state. We theoretically analyze the sensitivity enhancement with respect to the corresponding classical strategy and experimentally demonstrate a 2 dB quantum noise reduction in the measurement of a linear combination of two phases.

© 2023 The Author(s)

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