Probing RG flows, symmetry resolution and quench dynamics through the capacity of entanglement
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Publication:6158785
DOI10.1007/JHEP03(2023)175arXiv2301.02117OpenAlexW4360856898MaRDI QIDQ6158785
Author name not available (Why is that?)
Publication date: 31 May 2023
Published in: (Search for Journal in Brave)
Abstract: We compare the capacity of entanglement with the entanglement entropy by considering various aspects of these quantities for free bosonic and fermionic models in one spatial dimension, both in the continuum and on the lattice. Substantial differences are observed in the subleading terms of these entanglement quantifiers when the subsystem is made by two disjoint intervals, in the massive scalar field and in the fermionic chain. We define -functions based on the capacity of entanglement similar to the one based on the entanglement entropy, showing through a numerical analysis that they display a monotonic behaviour under the renormalisation group flow generated by the mass. The capacity of entanglement and its related quantities are employed to explore the symmetry resolution. The temporal evolutions of the capacity of entanglement and of the corresponding contour function after a global quench are also discussed.
Full work available at URL: https://arxiv.org/abs/2301.02117
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