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Entanglement of magnon excitations in spin chains

Zhang, Jiaju ; Rajabpour, M. A.

The journal of high energy physics, 2022-02, Vol.2022 (2), p.72-45, Article 72 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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Título:
Entanglement of magnon excitations in spin chains
Autor: Zhang, Jiaju ; Rajabpour, M. A.
Assuntos: Bethe Ansatz ; Chains ; Classical and Quantum Gravitation ; Elementary Particles ; Entanglement ; Entropy ; Excitation ; Field Theories in Lower Dimensions ; High energy physics ; Lattice Integrable Models ; Magnons ; Numerical analysis ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Regular Article - Theoretical Physics ; Relativity Theory ; Scaling ; String Theory
É parte de: The journal of high energy physics, 2022-02, Vol.2022 (2), p.72-45, Article 72
Descrição: A bstract We calculate exactly the entanglement content of magnon excited states in the integrable spin-1/2 XXX and XXZ chains in the scaling limit. In particular, we show that as far as the number of excited magnons with respect to the size of the system is small one can decompose the entanglement content, in the scaling limit, to the sum of the entanglement of particular excited states of free fermionic or bosonic theories. In addition we conjecture that the entanglement content of the generic translational invariant free fermionic and bosonic Hamiltonians can be also classified, in the scaling limit, with respect to the entanglement content of the fermionic and bosonic chains with the number operator as the Hamiltonian in certain circumstances. Our results effectively classify the entanglement content of wide range of integrable spin chains in the scaling limit.
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

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Entanglement of magnon excitations in spin chains

Zhang, Jiaju ; Rajabpour, M. A.

Berlin/Heidelberg: Springer Berlin Heidelberg

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