1996/07/16 by Ivan Pontual, Pontual, Ivan, Fernando Moraes +1 · 1 citation
Physics and Astronomy · #Quantum Electrodynamics and Casimir Effect #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9607110
14 pages, LaTex
arxiv created 1996/07/16 · arxiv updated 2009/11/30
In this work, it is shown that a non-zero vacuum energy density (the Casimir energy) for a scalar field appears in a continuous elastic solid due to the presence of a topological defect, the screw dislocation. An exact expression is obtained for this energy density in terms of the Burgers vector describing the defect, for zero and finite temperature.