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Spreading of entanglement and correlations after a quench with intertwined quasiparticles
by Alvise Bastianello, Pasquale Calabrese
This Submission thread is now published as
Submission summary
| Submission information |
| Arxiv Link: |
https://arxiv.org/abs/1807.10176v2 (pdf)
|
| Date accepted: |
2018-10-08 |
| Date submitted: |
2018-09-26 02:00 |
| Submitted by: |
Bastianello, Alvise |
| Submitted to: |
SciPost Physics |
| Ontological classification |
| Academic field: |
Physics |
| Specialties: |
- Quantum Physics
- Statistical and Soft Matter Physics
|
| Approach: |
Theoretical |
Abstract
We extend the semiclassical picture for the spreading of entanglement and
correlations to quantum quenches with several species of quasiparticles that
have non-trivial pair correlations in momentum space. These pair correlations
are, for example, relevant in inhomogeneous lattice models with a
periodically-modulated Hamiltonian parameter. We provide explicit predictions
for the spreading of the entanglement entropy in the space-time scaling limit.
We also predict the time evolution of one- and two-point functions of the order
parameter for quenches within the ordered phase. We test all our predictions
against exact numerical results for quenches in the Ising chain with a
modulated transverse field and we find perfect agreement.
Published as
SciPost Phys. 5, 033 (2018)
