224 citations
- Consejo Superior de Investigaciones CientíficasES49 papers
- Universitat de BarcelonaES39 papers
- Institute for High Energy PhysicsES28 papers
- Tomsk State Pedagogical UniversityRU12 papers
- Centre for Research on Ecology and Forestry ApplicationsES5 papers
- Universitat Autònoma de BarcelonaES5 papers
- University of OxfordGB5 papers
- Institució Catalana de Recerca i Estudis AvançatsES4 papers
- Leipzig UniversityDE3 papers
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37 papers · 1 filter
Casimir energies for massive fields in the bag
M. Bordag, K. Kirsten, E. Elizalde +1
The Casimir energy corresponding to a massive scalar field with Dirichlet boundary conditions on a spherical bag is obtained. The field is considered, separately, inside and outsid…
Effective potential for a covariantly constant gauge field in curved spacetime
Emilio Elizalde, Sergei D. Odintsov, August Romeo
We discuss the influence of gravitational effects on the stabilization of the chromomagnetic vacuum. The one-loop effective potential for a covariantly constant SU(2) gauge field i…
The Gross-Neveu model on a sphere with a magnetic monopole
E. Elizalde, S. Naftulin, S. D. Odintsov
We study, for the first time, the phase structure of the Gross--Neveu model with a combination of a (constant) gravitational and a magnetic field. This has been made possible by ou…
Complete zeta-function approach to the electromagnetic Casimir effect for spheres and circles
S. Leseduarte, August Romeo
A technique for evaluating the electromagnetic Casimir energy in situations involving spherical or circular boundaries is presented. Zeta function regularization is unambiguously u…
Antisymmetric tensor fields on spheres: functional determinants and non--local counterterms
E. Elizalde, M. Lygren, D. V. Vassilevich
The Hodge--de Rham Laplacian on spheres acting on antisymmetric tensor fields is considered. Explicit expressions for the spectrum are derived in a quite direct way, confirming pre…
The renormalization group and spontaneous compactification of a higher-dimensional scalar field theory in curved spacetime
E. Elizalde, R. Kantowski, S. D. Odintsov
The renormalization group (RG) is used to study the asymptotically free -theory in curved spacetime. Several forms of the RG equations for the effective potential are formul…