12 citations · 37 across the 13 of their papers we have counts for
13 papers
Dissipation-engineered dual-charger quantum batteries
Yi-jia Yang, Yu-qiang Liu, Zheng Liu +3
Suppressing coherent energy backflow while maintaining extractable energy in a stable nonequilibrium state remains a central challenge for quantum energy storage. Here, we introduc…
Distinct Signatures of Dynamical and Spectral Criticality in Quenched Quantum Batteries
Zheng Liu, Wen-Hui Nie, Yi-jia Yang +2
Criticality is widely used to enhance energy storage in quantum batteries. Two criticalities are compared here, one spectral and one dynamical. We ask two questions. Where does the…
Quantum Magnetometry with Orientation beyond Steady-State Limits in Cavity-Magnon Systems
Zheng Liu, Ding-hui Xu, Yi-jia Yang +2
We propose a transient vector quantum magnetometry protocol based on cavity-magnon systems. By exploiting finite-time dynamics initialized from a reservoir-engineered squeezed stea…
Enhancing optomechanical force sensing utilizing synthetic magnetism
Ding-hui Xu, Zheng Liu, Chang-shui Yu
In precision force sensing of multi-mechanical mode optomechanical systems, coherent interference can decouple certain degenerate vibrational modes from the cavity field, leading t…
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…
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…
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…
Weak force sensing based on optical parametric amplification in a cavity optomechanical system coupled in series with two oscillators
Zheng Liu, Yu-qiang Liu, Yi-jia Yang +1
In the realm weak force sensing, an important issue is to suppress fundamental noise (quantum noise and thermal noise), as they limit the accuracy of force measurement. In this pap…
Enhanced Sensing by Geometric Tuning of YIG Spheres: Noise Reduction, Signal Amplification and Directional Magnetic Field Detection
Zheng Liu, Ding-hui Xu, Yi-jia Yang +1
Noise suppression and directional signal enhancement are essential challenges in detecting weak magnetic fields in cavity electrodynamics systems. Traditional schemes struggle to r…
Enhancing Weak magnetic field sensing of cavity-magnon system with dual frequency modulation
Zheng Liu, Yu-qiang Liu, Zi-yi Mai +3
The crucial limitation of improving the sensitivity of the detection of weak magnetic fields is the unavoidable measurement noise. In this paper, we propose a scheme to achieve pre…
Quantum heat valve and diode of strongly coupled defects in amorphous material
Yu-qiang Liu, Yi-Jia Yang, Ting-ting Ma +2
The mechanical strain can control the frequency of two-level atoms in amorphous material. In this work, we would like to employ two coupled two-level atoms to manipulate the magnit…
Magnetically controlled quantum thermal devices via three nearest-neighbor coupled spin-1/2 systems
Yi-jia Yang, Yu-qiang Liu, Zheng Liu +1
A quantum thermal device based on three nearest-neighbor coupled spin-1/2 systems controlled by the magnetic field is proposed. We systematically study the steady-state thermal beh…
Quantum heat valve and entanglement in superconducting resonators
Yu-qiang Liu, Yi-jia Yang, Ting-ting Ma +1
Quantum superconducting circuit with flexible coupler has been a powerful platform for designing quantum thermal machines. In this letter, we employ the tunable coupling of two sup…