Resolving naked singularities in ${\alpha }^{\prime }$-corrected string theory

Abstract

Low energy effective action of bosonic string theory possesses a kind of singular static solution which can be interpreted as a naked singularity. Based on the Hohm-Zwiebach action, the naked singularities could be smoothed out by introducing the complete ${\alpha }^{\prime }$ corrections of string theory. In this paper, we present two sets of non-singular solutions, which are also regular everywhere in the Einstein frame. In the perturbative region ${\alpha }^{\prime }\to 0$, the solutions reduce to the perturbative results. Our result provides extra evidence for weak cosmic censorship conjecture (WCCC) from a viewpoint of string theory.

arXiv commentV2: 16 pages, 8 figures, references added; V3: published version

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• Large $D$ gravity and low $D$ string via ${\alpha }^{\prime }$ corrections
• Three dimensional regular black string via loop corrections
• Black hole solutions in double field theory
• Two non-perturbative ${\alpha }^{\prime }$ corrected or loop corrected string cosmological solutions