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SKM 2023 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 67: Dynamics and Chaos in Many-Body Systems II (joint session DY/TT)

TT 67.9: Talk

Friday, March 31, 2023, 11:45–12:00, MOL 213

Quasiparticle Description of Entanglement Growth — •Molly Gibbins, Bruno Bertini, and Adam Smith — University of Nottingham

The quasiparticle picture of entanglement is a novel way to describe a feature unique to quantum many-body systems. Recent research has found excellent agreement of this description with numeric results: a description that had been shown to hold for the general family of Rényi entanglement entropies, for different classes of quench and different geometries of the boundary across which entanglement develops.

The aim of this project is to develop a quasiparticle description of the entanglement growth in free-fermionic systems with translational invariance in both 1D and 2D. The propagation of quasiparticles across this cut will respect this translational invariance and it is expected that the entanglement generated between these particles will be in very good agreement with the exact solution for these systems.

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