RT Journal Article T1 States of low energy in the Schwinger effect A1 Álvarez Domínguez, Álvaro A1 Garay Elizondo, Luis Javier A1 Martín Benito, Mercedes A1 Neves, Rita B. AB 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. PB Springer SN 1126-6708 YR 2023 FD 2023-06-15 LK https://hdl.handle.net/20.500.14352/113585 UL https://hdl.handle.net/20.500.14352/113585 LA eng NO 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 NO SFRH/BD/143525/2019 NO Ministerio de Ciencia e Investigación (España) NO Agencia Estatal de Investigación (España) NO Fundação para a Ciência e a Tecnologia (Portugal) DS Docta Complutense RD 18 abr 2025