5 papers
Simultaneous estimation of relative phase and coherence in astronomical interferometry
Yawen Tang, Wei Ye, Lu Qin +6
Astronomical interferometry is a cornerstone technique for high-resolution stellar imaging and observational astrophysics, extracting spatial information from the coherence of ligh…
Impact of the Unruh effect on the estimation precision of Gaussian channel parameters
Shoukang Chang, Yawen Tang, Wei Ye +3
Gaussian quantum channels constitute a pivotal physical framework for characterizing the dynamics of Gaussian quantum states. Extensive scholarly attention has been devoted to the…
Dissipative Quantum Battery in the Ultrastrong Coupling Regime Between Two Oscillators
Yu-qiang Liu, Yi-jia Yang, Zheng Liu +6
In this work, we propose an open quantum battery that stores and releases energy by employing a two-mode ultrastrongly coupled bosonic system, with one mode (the charger) coupled t…
Multiparameter quantum estimation with a uniformly accelerated Unruh-DeWitt detector
Shoukang Chang, Yashu Yang, Wei Ye +6
The uniformly accelerated Unruh-DeWitt detector serves as a fundamental model in relativistic quantum metrology. While previous studies have mainly concentrated on single-parameter…
Quantum entanglement and Einstein-Podolsky-Rosen steering in ultrastrongly light-matter coupled system
Yu-qiang Liu, Shan Sun, Yi-jia Yang +5
This work presents a scheme for engineering quantum entanglement and Einstein-Podolsky-Rosen (EPR) steering with Gaussian measurements based on the quantum Hopfield model that inco…