Quantum field theories with boundaries and novel instabilities

Abstract

Quantum physics on manifolds with boundary brings novel aspects due to boundary conditions. One important feature is the appearance of localised negative eigenmodes for the Laplacian on the boundary. These can potentially lead to instabilities. We consider quantum field theories on such manifolds and interpret these as leading to the onset of phase transitions.

17 pages, 4 figures, accepted PRD version

References in corpus (3)

• Casimir Effect and Global Theory of Boundary Conditions
• Double-delta potentials: one dimensional scattering. The Casimir effect and kink fluctuations
• Vacuum Boundary Effects

Cited by in corpus (7)

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• Embedding into flat spacetime and black hole thermodynamics