23 citations · 59 across the 8 of their papers we have counts for
8 papers
Analytical Approximations for Generalized Landau-Zener Transitions in Multi-level Non-Hermitian Systems
Chon-Fai Kam, Yang Chen
We study the dynamics of non-adiabatic transitions in non-Hermitian multi-level parabolic models where the separations of the diabatic energies are quadratic function of time. The…
Genuine tripartite entanglement as a probe of quantum phase transitions in a spin-1 Heisenberg chain with single-ion anisotropy
Chon-Fai Kam, Yang Chen
We study the quantum phase transitions of spin-1 Heisenberg chains with an easy-axis anisotropy and a uniaxial single-ion anisotropy using a multipartite entanglement appro…
Non-adiabatic transitions in parabolic and super-parabolic -symmetric non-Hermitian systems
Chon-Fai Kam, Yang Chen
Exceptional points, the spectral degeneracy points in the complex parameter space, are fundamental to non-Hermitian quantum systems. The dynamics of non-Hermitian systems in the pr…
Thermodynamic phase transition of a Schwarzschild black hole with global monopole under GUP
Yang Chen, Hui-Ling Li
In this paper, considering the influence of the principle of generalized uncertainty (GUP), the phase transition of a Schwarzschild black hole with global monopole is discussed. Fi…
Analytical Approximations to the Dynamics of Nonlinear Level Crossing Models
Chon-Fai Kam, Yang Chen
We study the dynamics of a nonlinear two-level crossing model with a cubic modification of the linear Landau-Zener diabatic energies. The solutions are expressed in terms of the bi…
Analytical Results for the Dynamics of Parabolic Level-Crossing Model
Chon-Fai Kam, Yang Chen
We study the dynamics of a two-level crossing model with a parabolic separation of the diabatic energies. The solutions are expressed in terms of the tri-confluent Heun equations -…
Hawking Radiation of Vector Particles via Tunneling From 4-Dimensional And 5-Dimensional Black Holes
Zhongwen Feng, Yang Cheng, Xiaotao Zu
Using Proca equation and WKB approximation, we investigate Hawking radiation of vector particles via tunneling from 4-dimensional Kerr-de Sitter black hole and 5-dimensional Schwar…
Statistical properties of localisation--delocalisation transition in one dimension
M. Steiner, Yang Chen, M. Fabrizio +1
We study a one-dimensional model of disordered electrons (also relevant for random spin chains), which exhibits a delocalisation transition at half-filling. Exact probability distr…