221 citations · 892 across the 22 of their papers we have counts for
7 papers · 1 filter
Landauer's princple for Fermionic field in one dimensional bag
Yu-Song Cao, YanXia Liu, Rong Zhang
We study the Landauer's principle of an Unruh-DeWitt detector linearly coupled to Dirac field in dimensional cavity. When the initial state of the field is vacuum, we obtai…
Dynamic quantum-enhanced sensing without entanglement in central spin systems
Wenkui Ding, Yanxia Liu, Zhenyu Zheng +1
We propose a dynamic quantum sensing scheme by using a quantum many-spin system composed of a central spin interacting with many surrounding spins. Starting from a generalized Isin…
Exact solution of single impurity problem in non-reciprocal lattices: impurity induced size-dependent non-Hermitian skin effect
Yanxia Liu, Yumeng Zeng, Linhu Li +1
Non-Hermitian non-reciprocal systems are known to be extremely sensitive to boundary conditions, exhibiting diverse localizing behaviors and spectrum structures when translational…
Feynman diagram approach to dynamical Casimir effect in optimechanical cavity
Yu-Song Cao, Yanxia Liu
In this paper we study an optomechnical system enclosed by an optical cavity with one mirror attached to a spring as a closed quantum system. We provide a different angle of studyi…
Exact solution of non-Hermitian systems with generalized boundary conditions: size-dependent boundary effect and fragility of skin effect
Cui-Xian Guo, Chun-Hui Liu, Xiao-Ming Zhao +2
Systems with non-Hermitian skin effects are very sensitive to the imposed boundary conditions and lattice size, and thus an important question is whether non-Hermitian skin effects…
Mass-imbalanced atoms in a hard-wall trap: an exactly solvable model with emergent symmetry
Yanxia Liu, Fan Qi, Yunbo Zhang +1
We show that a system consisting of two interacting particles with mass ratio or in a hard-wall box can be exactly solved by using Bethe-type ansatz. The ansatz is based…
Entanglement dynamics of the ultra-strong coupling three-qubit Dicke model
Lijun Mao, Yanxia Liu, Yunbo Zhang
We give an analytical description of the dynamics of the three-qubit Dicke model using the adiabatic approximation in the parameter regime where the qubits transition frequencies a…