Thermodynamic principle for quantum metrology

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.

Comments are welcome

References in corpus (8)

• Quantum metrology from a quantum information science perspective
• The Physics of Maxwell's demon and information
• Fisher Information and entanglement of non-Gaussian spin states
• The thermodynamic meaning of negative entropy
• Generalized Limits for Single-Parameter Quantum Estimation
• Band geometry, Berry curvature and superfluid weight
• Finite-time Landauer principle
• Quantum metrology with unitary parametrization processes

Cited by in corpus (1)

• Monitoring variations of refractive index via Hilbert-Schmidt speed and applying this phenomenon to improve quantum metrology