The charge-sector coefficient of the Type-IIB axion-dilaton wormhole partition function is shown to be a chiral Wishart hard-edge limit of the D(-1)/D3 super-ADHM collective-coordinate integral.
Holography Principle and Topology Change in String Theory
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abstract
D-instantons of Type IIB string theory are Ramond-Ramond counterpart of Giddings-Strominger wormholes connecting two asymptotic regions of spacetime. Such wormholes, according to Coleman, might lead to spacetime topology change, third-quantized baby universes and probabilistic determination of fundamental coupling parameters. Utilizing correspondence between AdS5 x M5 Type IIB supergravity and d=4 super Yang-Mills theory, we point out that topology change and sum over topologies not only take place in string theory but also are required for consistency with holography. Nevertheless, the effects of D-instanton wormholes remain completely deterministic, in sharp contrast to Coleman's scenario.
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The paper shows that Euclidean axion wormholes remain regular and stable in AdS3 for any mouth radius to AdS radius ratio and across topologies, with computable actions that can be included in the 3D gravitational path integral.
In the axion charge sector of Type IIB, the E=0 BPS instanton has a physical Hessian that factorizes as Q dagger Q, interpreted as an endpoint theorem beyond stability for E>0 wormholes, with separation of throat from multipole operator terms.
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The Chiral Random-Matrix Ensemble of the Type-IIB Axion--Dilaton Wormhole Partition Function
The charge-sector coefficient of the Type-IIB axion-dilaton wormhole partition function is shown to be a chiral Wishart hard-edge limit of the D(-1)/D3 super-ADHM collective-coordinate integral.
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AdS3 axion wormholes as stable contributions to the Euclidean gravitational path integral
The paper shows that Euclidean axion wormholes remain regular and stable in AdS3 for any mouth radius to AdS radius ratio and across topologies, with computable actions that can be included in the 3D gravitational path integral.
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Type IIB Axion--Dilaton Wormholes and the BPS Limit Hessian
In the axion charge sector of Type IIB, the E=0 BPS instanton has a physical Hessian that factorizes as Q dagger Q, interpreted as an endpoint theorem beyond stability for E>0 wormholes, with separation of throat from multipole operator terms.