1. Quantum quench dynamics of the one-dimensional Ising model in transverse field.
- Author
-
Zou, Wei-Ke, Li, Nuo-Wei, Han, Chong, and Liu, Dong-dong
- Subjects
- *
ISING model , *QUANTUM theory , *QUANTUM groups , *CRITICAL point (Thermodynamics) , *MAGNETIC fields , *MARKOV spectrum - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF