Instantons of Type IIB Supergravity in Ten Dimensions

Details Instantons of Type IIB Supergravity in Ten Dimensions Instantons of Type IIB Supergravity in Ten Dimensions

2002-01-30

arxiv.org/abs/hep-th/0201244v2

Phys.Rev. D66 (2002) 105026

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, no figures; Version 2 has revised sections IV and V. Earlier equations are essentially unchanged, but interpretation

Scientific paper

10.1103/PhysRevD.66.105026

A family of SO(10) symmetric instanton solutions in Type IIB supergravity is developed. The instanton of least action is a candidate for the low-energy, semiclassical approximation to the {D=--1} brane. Unlike a previously published solution,[GGP] this admits an interpretation as a tunneling amplitude between perturbatively degenerate asymptotic states, but with action twice that found previously. A number of associated issues are discussed such as the relation between the magnetic and electric pictures, an inversion symmetry of the dilaton and the metric, the $R\times S^9$ topology of the background, and some properties of the solution in an "instanton frame" corresponding to a Lagrangian in which the dilaton's kinetic energy vanishes.

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