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- Title
Quantum quench dynamics of the one-dimensional Ising model in transverse field.
- Authors
Zou, Wei-Ke; Li, Nuo-Wei; Han, Chong; Liu, Dong-dong
- 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.
- Subjects
ISING model; QUANTUM theory; QUANTUM groups; CRITICAL point (Thermodynamics); MAGNETIC fields; MARKOV spectrum
- Publication
Pramana: Journal of Physics, 2019, Vol 92, Issue 4, pN.PAG
- ISSN
0304-4289
- Publication type
Article
- DOI
10.1007/s12043-018-1714-y