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quench”相关记录3条 . 查询时间(0.39 秒)
We present an analytical study on the resilience of topological order after a quantum quench. The system is initially prepared in the ground state of the toric-code model, and then quenched by switchi...
Quantum quench in interacting field theory: a self-consistent approximation
Quantum quench self-consistent approximation
2010/3/10
We study a composite quantum quench of the energy gap and the interactions in the non-integrable \phi^4 model using a self-consistent approximation. Firstly we review the results for free theories whe...
Exact results for the criticality of quench dynamics in quantum Ising models
Exact results criticality of quench dynamics quantum Ising models
2010/4/12
Based on the obtained exact results we systematically study the quench dynamics of a one-dimensional spin-1/2 transverse field Ising model with zero- and finite-temperature initial states. We focus on...