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oai:docta.ucm.es:20.500.14352/1135852025-01-10T01:10:10Zcom_20.500.14352_14col_20.500.14352_15

States of low energy in the Schwinger effect Álvarez Domínguez, Álvaro Garay Elizondo, Luis Javier Martín Benito, Mercedes Neves, Rita B. 53 Nonperturbative effects Cosmological models Particle creation Quantum Field Física (Física) 2212 Física Teórica SFRH/BD/143525/2019 States of low energy in cosmology minimise the energy density when smeared in a chosen time interval. We extend such construction to generic homogeneous (possibly anisotropic) particle creation settings. Focusing on the Schwinger effect, we study the role played by the support of the smearing function and identify the vacua obtained in the limiting cases of small and large time intervals. We also analyse the spectral properties of the power spectrum and the number of created particles, which are complementary in characterising the vacuum, and investigate the multipolar contributions coming from the anisotropies. Ministerio de Ciencia e Investigación (España) Agencia Estatal de Investigación (España) Fundação para a Ciência e a Tecnologia (Portugal) Depto. de Física Teórica Fac. de Ciencias Físicas Instituto de Física de Partículas y del Cosmos (IPARCOS) TRUE pub 2025-01-09T17:07:15Z 2025-01-09T17:07:15Z 2023-06-15 journal article VoR https://hdl.handle.net/20.500.14352/113585 1126-6708 10.1007/jhep06(2023)093 1029-8479 eng info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-118159GB-C44/ES/UNIVERSO CUANTICO GRAVITATORIO: CAMPOS, LAZOS Y GRAVEDAD DE WEYL/ Álvarez-Domínguez, Á., Garay, L.J., Martín-Benito, M. et al. States of low energy in the Schwinger effect. J. High Energ. Phys. 2023, 93 (2023). https://doi.org/10.1007/JHEP06(2023)093 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ open access application/pdf Springer