3 papers
quant-ph2025
Behavior of quantum coherence in the ultrastrong and deep strong coupling regimes of light-matter system
Yu-qiang Liu, Qiulin Long, Yi-jia Yang +12
The ultrastrong and deep strong coupling regimes exhibit a variety of intriguing physical phenomena. In this work, we utilize the Hopfield model of a two-mode bosonic system, with…
quant-ph2025
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…
quant-ph2024
Singular transport in non-equilibrium strongly internal-coupled 1D tilted field spin-1/2 chain
Yi-jia Yang, Yu-qiang Liu, Zheng Liu +1
Non-equilibrium spin-chain systems have been attracting increasing interest in energy transport. This work studies a one-dimensional non-equilibrium Ising chain immersed in a tilte…