Out-of-equilibrium dynamics of the XY spin chain from form factor expansion
We consider the XY spin chain with arbitrary time-dependent magnetic field and anisotropy. We argue that a certain subclass of Gaussian states, called Coherent Ensemble (CE) following [1], provides a natural and unified framework for out-of-equilibrium physics in this model. We show that all correla...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
SciPost Foundation
2022
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