Loop Quantum Cosmology and Boundary Proposals

Bojowald, Martin; Vandersloot, Kevin

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Loop Quantum Cosmology and Boundary Proposals

Bojowald, M., & Vandersloot, K. (2006). Loop Quantum Cosmology and Boundary Proposals. In M. Novello, S. Perez-Bergliaffa, & R. Ruffini (Eds.), Proceedings of Tenth Marcel Grossmann Meeting on General Relativity (pp. 1089-1103). Singapore: World Scientific.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-5F4C-E Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002C-58C8-3

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Creators:
Bojowald, Martin¹, Author
Vandersloot, Kevin, Author

Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014

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Abstract: For many years, the most active area of quantum cosmology has been the issue of choosing boundary conditions for the wave function of a universe. Recently, loop quantum cosmology, which is obtained from loop quantum gravity, has shed new light on this question. In this case, boundary conditions are not chosen by hand with some particular physical intuition in mind, but they are part of the dynamical law. It is then natural to ask if there are any relations between these boundary conditions and the ones provided before. After discussing the technical foundation of loop quantum cosmology which leads to crucial ifferences to the Wheeler–DeWitt quantization, we compare the dynamical initial conditions of loop quantum cosmology with the tunneling and the no-boundary proposal and explain why they are closer to the no-boundary condition. We end with a discussion of recent developments and several open problems of loop quantum cosmology.

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Language(s): eng - English

Dates: Date issued: 2006

Publication Status: Issued

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Identifiers: eDoc: 60198

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Title: MG10 Meeting held at Brazilian Center for Research in Physics (CBPF)

Place of Event: Rio de Janeiro, Brazil

Start-/End Date: 2003-07-20 - 2003-07-26

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Title: Proceedings of Tenth Marcel Grossmann Meeting on General Relativity

Source Genre: Proceedings

Creator(s):
Novello, Mario, Editor
Perez-Bergliaffa, Santiago, Editor
Ruffini, Remo, Editor

Affiliations:
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Publ. Info: Singapore : World Scientific

Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 1089 - 1103 Identifier: ISBN: 978-981-256-667-6