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Speaker |
Konopka, Tomasz |
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Talk Title |
Quantum vacuum effects from boundaries of designer potentials |
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Abstract |
Vacuum energy in quantum field theory, being the sum of zero-point energies of all field modes, is formally infinite but yet can give rise to finite observable effects. One way of understanding how these effects arise is to compute the vacuum energy for a large cavity divided into disjoint regions by pistons. In this talk I will describe such a calculation in a situation where the field potential is not the same in all regions of the cavity. The observable parts of the vacuum energy in such cases can depend on the geometry (shape) of one region of the cavity and can be large when this region is too. This unusual behavior may be interesting for studies on the relation between vacuum energy in quantum field theory and geometry. This talk will be based on: Phys. Rev. D 79, 085012 (2009), arXiv:0904.0527 [hep-th] |
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