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Proceedings Paper

Analysis of underwater target detection based on entangled Fock state interference
Author(s): Shi-long Xu; Yi-hua Hu
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Paper Abstract

Focusing on the underwater exploration potential of lidar and the limitations of physical limit on its detection sensitivity and detection accuracy, this paper focuses on modeling and analyzing the ultra-sensitive detection performance of entangled Fock state under seawater attenuation environment. Based on the LCMMS state, the entanglement detection model under seawater attenuation environment is established. The minimum phase error accuracy of LCMMS under the uniform distribution of photon number and the interference fringe contrast formula are derived. The simulation results show that the ultra-sensitive detection distance of the entangled Fock state under clear seawater can reach a distance of more than ten meters under water. The high photon number entangled state can make the distance higher; because LCMMS contains more high In the M and M' state of the photon number, the ultra-sensitive detection range of the quantum interferometric target detection of LCMMS under seawater loss is nearly 1.3 times that of the M and M' state.

Paper Details

Date Published: 9 November 2018
PDF: 8 pages
Proc. SPIE 10825, Quantum and Nonlinear Optics V, 108251B (9 November 2018); doi: 10.1117/12.2501043
Show Author Affiliations
Shi-long Xu, State Key Lab. of Pulsed Power Laser (China)
Key Lab. of Electronic Restriction of Anhui Province (China)
Yi-hua Hu, State Key Lab. of Pulsed Power Laser (China)
Key Lab. of Electronic Restriction of Anhui Province (China)

Published in SPIE Proceedings Vol. 10825:
Quantum and Nonlinear Optics V
Qihuang Gong; Guang-Can Guo; Byoung S. Ham, Editor(s)

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