Practical Quantum Sensing with Thermal Light

Peng Kian Tan; Xi Jie Yeo; Alvin Zhen Wei Leow; Lijiong Shen; Christian Kurtsiefer

doi:10.1103/PhysRevApplied.20.014060

Practical Quantum Sensing with Thermal Light

Quantum Physics 2023-07-31 v1 Optics

Authors: Peng Kian Tan , Xi Jie Yeo , Alvin Zhen Wei Leow , Lijiong Shen , Christian Kurtsiefer

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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.

Keywords

quantum thermodynamics quantum optics thermal physics

Cite

@article{arxiv.2303.12338,
  title  = {Practical Quantum Sensing with Thermal Light},
  author = {Peng Kian Tan and Xi Jie Yeo and Alvin Zhen Wei Leow and Lijiong Shen and Christian Kurtsiefer},
  journal= {arXiv preprint arXiv:2303.12338},
  year   = {2023}
}

Comments

5 pages, 5 figures

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