Practical Quantum Sensing with Thermal Light

• URL: http://arxiv.org/abs/2303.12338v1
• Date: Wed, 22 Mar 2023 06:31:09 GMT
• Title: Practical Quantum Sensing with Thermal Light
• Authors: Peng Kian Tan, Xi Jie Yeo, Alvin Zhen Wei Leow, Lijiong Shen, Christian Kurtsiefer
• Abstract summary: We show that the temporal correlations in light with a thermal photon statistics can be equally useful for such applications. Using a sub-threshold laser diode as an ultrabright source of thermal light, we demonstrate optical range finding to a distance of up to 1.8 km.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Many quantum sensing suggestions rely on temporal correlations found in photon pairs generated by parametric down-conversion. In this work, we show that the temporal correlations in light with a thermal photon statistics can be equally useful for such applications. Using a sub-threshold laser diode as an ultrabright source of thermal light, we demonstrate optical range finding to a distance of up to 1.8 km.

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