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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...