RT info:eu-repo/semantics/article T1 Revisiting the Casimir energy with general boundary conditions and applications in 1D crystals A1 Muñoz Castañeda, José María A1 Bordag, Michael A1 Santamaría Sanz, Lucía K1 Quantum field theory under the influence of classical backgrounds K1 Casimir effect K1 Boundary conditions K1 Física K1 Physics K1 Matemáticas K1 Mathematics AB We obtain new expressions for the Casimir energy between plates that are mimicked by the most general possible boundary conditions allowed by the principles of quantum field theory. This result enables to provide the quantum vacuum energy for scalar fields propagating under the influence of a one-dimensional crystal represented by a periodic potential formed by an infinite array of identical potentials with compact support. PB World Scientific Publishing SN 0217-7323 YR 2020 FD 2020-01 LK http://hdl.handle.net/10259/10320 UL http://hdl.handle.net/10259/10320 LA eng NO JMMC and LSS acknowledge MINECO (MTM2014-57129-C2-1-P) and Junta de Castilla y León (BU229P18 and VA137G18). DS Repositorio Institucional de la Universidad de Burgos RD 14-mar-2025