Vacuum Expectation Value of the Spinor Massive field in the Cosmic String Space-Time
arXiv:hep-th/0602048 · doi:10.1088/0264-9381/23/10/015
Abstract
We found the contribution to the vacuum expectation value of the energy-momentum tensor of a massive Dirac field due to the conical geometry of the cosmic string space-time. The heat kernel and heat kernel expansion for the squared Dirac operator in this background are also considered and the first three coefficients were found in an explicity form.
9 pages, 1 figure (2 ref added) (enlarged version)
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