MG15 - Talk detail

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Talk

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Abstract

In this talk we present a recent analysis of interacting quantum field theories on a curved manifold with a topological defect constructed by geometrically deforming a lattice. We present an explicit example where curvature and boundary conditions compete in altering the way the quantum vacuum is destabilized. We show that the competing action of the locally induced curvature and of boundary conditions generated by the non-trivial topology allows configurations where symmetries can be spontaneously broken close to the defect core. Inspired by this effect, we propose a novel mechanism to induce a superconducting phase by triggering particle condensation along cosmic strings.

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