Effects of the reservoir squeezing on the precision of parameter estimation

2015/03/05 by Shao-xiong Wu, Chang‐shui Yu, Chang-shui Yu +2 · 5 citations
Computer Science · Mathematics · Physics and Astronomy · #Estimation theory #Mathematics #Mechanical and Optical Resonators #Perturbation (astronomy) #Physics #Quantum #Quantum Information and Cryptography #Quantum mechanics #Spectroscopy and Quantum Chemical Studies #Statistical physics #Statistics #Thermal #Thermodynamics #quant-ph

paper · pdf · doi:10.1016/j.physleta.2015.03.002

published in Physics Letters A 379(18-19), 1228-1232 (Elsevier BV) · 6 pages, 6 figures

openalex publication_date 2015/03/05 · arxiv created 2015/09/14 · arxiv updated 2015/09/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The effects of reservoir squeezing on the precision of parameter estimation are investigated analytically based on non-perturbation procedures. The exact analytic quantum Fisher information (QFI) is obtained. It is shown that the QFI depends on the estimated parameter and its decay could be reduced by the squeezed reservoir compared with thermal (vacuum) reservoir, in particular, if the squeezing phase matching is satisfied.

Citations

• Decoherence-free subspace and disentanglement dynamics for two qubits in a common non-Markovian squeezed reservoir
• The elusive Heisenberg limit in quantum-enhanced metrology
• Quantum-enhanced measurements: beating the standard quantum limit
• General framework for estimating the ultimate precision limit in noisy quantum-enhanced metrology
• Genuine quantum trajectories for non-Markovian processes
• Measure for the non-Markovianity of quantum processes
• Quantum detection and estimation theory
• Effects of reservoir squeezing on quantum systems and work extraction
• Quantum Detection and Estimation Theory