Pair Creation of Black Holes by Domain Walls

Andrew Chamblin (University of Cambridge; Gary Gibbons (University of Cambridge); Institute for Theoretical Physics; Robert Caldwell (University of Cambridge); University of California - Santa Barbara)

Pair Creation of Black Holes by Domain Walls

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arxiv hep-th/9602126 v1 pith:NEYHOIG5 submitted 1996-02-22 hep-th gr-qc

Robert Caldwell (University of Cambridge) , Andrew Chamblin (University of Cambridge , Institute for Theoretical Physics , University of California - Santa Barbara) , Gary Gibbons (University of Cambridge) This is my paper

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keywords blackholescreationdomainfindinstantonsneutralpairs

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In this paper we study the production of pairs of neutral and charged black holes by domain walls, finding classical solutions and calculating their classical actions. We find that neutral black holes whose creation is mediated by Euclidean instantons must be produced mutually at rest with respect to one another, but for charged black holes a new type of instanton is possible in which after formation the two black holes accelerate away from one another. These new types of instantons are not possible in Einstein-Maxwell theory with a cosmological constant. We also find that the creation of non-orientable black hole solutions can be mediated by Euclidean instantons and that in addition if one is prepared to consider entirely Lorentzian no-boundary type contributions to the path integral then mutually accelerating pairs may be created even in the neutral case. Finally we consider the production of Kaluza-Klein monopoles both by a standard cosmological term and in the presence of a domain wall. We find that compactification is accompanied by the production of pairs of Kaluza-Klein monopoles.

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