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Thermodynamic Principle for Quantum Metrology

Yaoming Chu and Jianming Cai
Phys. Rev. Lett. 128, 200501 – Published 18 May 2022; Erratum Phys. Rev. Lett. 129, 109902 (2022)
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Abstract

The heat dissipation in quantum metrology represents not only an unavoidable problem towards practical applications of quantum sensing devices but also a fundamental relationship between thermodynamics and quantum metrology. However, a general thermodynamic principle which governs the rule of energy consumption in quantum metrology, similar to Landauer’s principle for heat dissipation in computations, has remained elusive. Here, we establish such a physical principle for energy consumption in order to achieve a certain level of measurement precision in quantum metrology, and show that it is intrinsically determined by the erasure of quantum Fisher information. The principle provides a powerful tool to investigate the advantage of quantum resources, not only in measurement precision but also in energy efficiency. It also serves as a bridge between thermodynamics and various fundamental physical concepts related in quantum physics and quantum information theory.

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  • Received 7 January 2022
  • Accepted 28 April 2022

DOI:https://doi.org/10.1103/PhysRevLett.128.200501

© 2022 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Erratum

Erratum: Thermodynamic Principle for Quantum Metrology [Phys. Rev. Lett. 128, 200501 (2022)]

Yaoming Chu and Jianming Cai
Phys. Rev. Lett. 129, 109902 (2022)

Authors & Affiliations

Yaoming Chu and Jianming Cai*

  • School of Physics, Hubei Key Laboratory of Gravitation and Quantum Physics, Institute for Quantum Science and Engineering, International Joint Laboratory on Quantum Sensing and Quantum Metrology, Huazhong University of Science and Technology, Wuhan 430074, China and Wuhan National High Magnetic Field Center, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China

  • *jianmingcai@hust.edu.cn

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Issue

Vol. 128, Iss. 20 — 20 May 2022

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