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Vacuum stress around a topological defect

V. A. De Lorenci, E. S. Moreira,

hep-tharXiv:hep-th/0301219

Abstract

We show that a dispiration (a disclination plus a screw dislocation) polarizes the vacuum of a scalar field giving rise to an energy momentum tensor which, as seen from a local inertial frame, presents non vanishing off-diagonal components. The results may have applications in cosmology (chiral cosmic strings) and condensed matter physics (materials with linear defects).

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