Quantum metrology with two-mode photon-subtracted squeezed vacuum

Liu Hao; Song Hongbin; Huang Heyu; Ke Hao; Tu Hua; Zhou Ai

doi:10.1117/12.3048501

5 December 2024 Quantum metrology with two-mode photon-subtracted squeezed vacuum

Liu Hao, Song Hongbin, Huang Heyu, Ke Hao, Tu Hua, Zhou Ai

Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 134181U (2024) https://doi.org/10.1117/12.3048501
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China

Abstract

We investigate the phase sensitivity of a Mach-Zehnder Interferometer (MZI) with an input of a non-Gaussian quantum entangled state, Two-Mode Photon-Subtracted Squeezed Vacuum states (TMPSSV). Parity detection is carried out at the output of the interferometer to obtain the phase uncertainty, which is a physical parameter that can quantify the sensitivity of interferometry. According to the simulation results, TMPSSV has a smaller phase uncertainty than the Two-Mode Squeezed Vacuum state (TMSV) in the entire range of the squeezing parameter which means the sensitivity of interferometry based on TMPSSV is higher than that of TMSV. Therefore, non-Gaussian entanglement based on TMPSSV provides a promising quantum resource for an ultra-sensitivity optical interferometer far beyond the standard quantum limit.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Liu Hao, Song Hongbin, Huang Heyu, Ke Hao, Tu Hua, and Zhou Ai "Quantum metrology with two-mode photon-subtracted squeezed vacuum", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 134181U (5 December 2024); https://doi.org/10.1117/12.3048501

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