2026-06-10T08:07:34Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/103212025-05-28T22:42:09Zcom_10259.4_2557com_10259_5086com_10259_2604col_10259.4_2558

Castro-Alvaredo, Olalla A. Santamaría Sanz, Lucía 2025-03-13T10:27:12Z 2025-03-13T10:27:12Z 2024-05 0217-9849 http://hdl.handle.net/10259/10321 10.1142/S0217984924300023 1793-6640 In this short review, we present the key definitions, ideas and techniques involved in the study of symmetry resolved entanglement measures, with a focus on the symmetry resolved entanglement entropy. In order to be able to define such entanglement measures, it is essential that the theory under study possess an internal symmetry. Then, symmetry-resolved entanglement measures quantify the contribution to a particular entanglement measure that can be associated to a chosen symmetry sector. Our review focuses on conformal (gapless/massless/critical) and integrable (gapped/massive) quantum field theories, where the leading computational technique employs symmetry fields known as (composite) branch point twist fields. Olalla is grateful to EPSRC for financial support under a Small Grant EP/W007045/1. Luc´ıa is grateful to the Regional Government of Castilla y Le´on (Junta de Castilla y Le´on), and the Spanish Ministry of Science and Innovation MICIN for the financial support received through the “Q-CAYLE: Secure Quantum Communications in Castilla y León” project, also co-funded by the European Union NextGenerationEU (PRTR C17.I1). application/pdf eng World Scientific Publishing Modern Physics Letters B. 2024, V. 39, n. 7 https://doi.org/10.1142/S0217984924300023 Symmetry resolved entanglement measures Entanglement entropy Quantum field theory Twist fields Integrability Física Matemáticas Physics Mathematics Symmetry-resolved measures in quantum field theory: A short review info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess Modern Physics Letters B 39 7