A diagrammatic expansion of the Casimir energy in multiple reflections: theory and applications

Details A diagrammatic expansion of the Casimir energy in multiple reflections: theory and applications A diagrammatic expansion of the Casimir energy in multiple reflections: theory and applications

2010-12-06

arxiv.org/abs/1012.1060v1

Phys.Rev.D83:045004,2011

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevD.83.045004

We develop a diagrammatic representation of the Casimir energy of a multibody configuration. The diagrams represent multiple reflections between the objects and can be organized by a few simple rules. The lowest-order diagrams (or reflections) give the main contribution to the Casimir interaction which proves the usefulness of this expansion. Among some applications of this, we find analytical formulae describing the interaction between "edges", i.e. semi-infinite plates, where we also give a first example of blocking in the context of the Casimir energy. We also find the interaction of edges with a needle and describe analytically a recent model of the repulsion due to the Casimir interaction.

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