Entanglement links and the quasiparticle picture
Abstract
The time evolution of a quantum state with short-range correlations after a quench to a 1D critical Hamiltonian can be understood using the quasi-particle picture, which states that local entanglement spreads as if it was carried by quasi-particles which separate at the speed of light. We extend the quasi-particle picture using the recently introduced link representation of entanglement, allowing us to apply it to initial states presenting long-range correlations. The entanglement links are current correlators, and therefore follow a wave equation which provides the time evolution of the entanglement entropies.
- Publication:
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arXiv e-prints
- Pub Date:
- August 2022
- DOI:
- 10.48550/arXiv.2208.03766
- arXiv:
- arXiv:2208.03766
- Bibcode:
- 2022arXiv220803766S
- Keywords:
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- Quantum Physics;
- Condensed Matter - Strongly Correlated Electrons