Entanglement echo and dynamical entanglement transitions
We formulate dynamical phase transitions in subsystems embedded in larger quantum systems. Introducing the entanglement echo as an overlap of the initial and instantaneous entanglement ground states, we show its analytic structure after a quench provides natural definition of dynamical phase transit...
Main Authors: | Kim Pöyhönen, Teemu Ojanen |
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2021-11-01
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Series: | Physical Review Research |
Online Access: | http://doi.org/10.1103/PhysRevResearch.3.L042027 |
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