Compact and extended objects from self-interacting phantom fields

Джунушалиев Владимир Джумакадырович, Vladimir Folomeev, Arislan Makhmudov, Ainur Urazalina, Douglas Singleton, John Scott

2016

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DOI 10.1103/physrevd.94.024004

Data confidence 70 medium

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Abstract

In this work, we investigate localized and extended objects for gravitating, self-interacting phantom fields. The phantom fields come from two scalar fields with a ``wrong-sign'' (negative) kinetic energy term in the Lagrangian. This study covers several solutions supported by these phantom fields: phantom balls, traversable wormholes, phantom cosmic strings, and ``phantom'' domain walls. These four systems are solved numerically, and we try to draw out general, interesting features in each case.