SciPost Submission Page
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 |
| Preprint 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)
