• Quantum quench dynamics of the one-dimensional Ising model in transverse field

• # Fulltext

https://www.ias.ac.in/article/fulltext/pram/092/04/0061

• # Keywords

Ising model; quantum quench; concurrence; quantum renormalisation group

• # Abstract

The quantum quench dynamics of the one-dimensional Ising model in transverse field is investigated using the quantum renormalisation group method. The analytic expression of concurrence $C(t)$ is obtained, where the initial state is a superposition state which is constructed from the eigenstates of pure Ising system. The effect of parameter $a$ in the period and range of concurrence are exhibited respectively in the vicinity of the critical point, which show scaling behaviour. When effective magnetic field $g$ is big enough, the maximum limit value is 1.0. However, the minimum value is different, which is also dependent on the evolved time $t$.

• # Author Affiliations

1. College of Mathematics and Physics, Xuzhou University of Technology, Xuzhou, China

• # Pramana – Journal of Physics

Volume 96, 2022
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019