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arXiv · hep-ph/9209281

Numerical Study of the Lowest Energy Configurations for Global String-Antistring Pairs

Ajit Mohan Srivastava
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Abstract

We investigate the lowest energy configurations for string - antistring pairs at fixed separations by numerically minimizing the energy. We show that for separations smaller than a critical value, a region of false vacuum develops in the middle due to large gradient energy density. Consequently, well defined string - antistring pairs do not exist for such separations. We present an example of vortex - antivortex production by vacuum bubbles where this effect seems to play a dynamical role in the annihilation of the pair. We also study the dependence of the energy of an string-antistring pair on their separation and find deviations from a simple logarithmic dependence for small separations.

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Ajit Mohan Srivastava. 1992-09-25. Numerical Study of the Lowest Energy Configurations for Global String-Antistring Pairs. https://doi.org/10.1103/physrevd.47.1324

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