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Title: Quantum entanglement of baby universes

Journal Article · · Nuclear Physics B
OSTI ID:934699

We study quantum entanglements of baby universes which appear in non-perturbative corrections to the OSV formula for the entropy of extremal black holes in type IIA string theory compactified on the local Calabi-Yau manifold defined as a rank 2 vector bundle over an arbitrary genus G Riemann surface. This generalizes the result for G=1 in hep-th/0504221. Non-perturbative terms can be organized into a sum over contributions from baby universes, and the total wave-function is their coherent superposition in the third quantized Hilbert space. We find that half of the universes preserve one set of supercharges while the other half preserve a different set, making the total universe stable but non-BPS. The parent universe generates baby universes by brane/anti-brane pair creation, and baby universes are correlated by conservation of non-normalizable D-brane charges under the process. There are no other source of entanglement of baby universes, and all possible states are superposed with the equal weight.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Physics Division
DOE Contract Number:
DE-AC02-05CH11231
OSTI ID:
934699
Report Number(s):
LBNL-385E; TRN: US0803833
Journal Information:
Nuclear Physics B, Vol. 778, Issue 1-2; Related Information: Journal Publication Date: 18 April 2007
Country of Publication:
United States
Language:
English

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