The no-boundary measure in string theory: Applications to moduli stabilization, flux compactification and cosmic landscape
Hwang Di, Lee BH, Sahlmann H, Yeom Dh (2012)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2012
Journal
Publisher: Institute of Physics: Hybrid Open Access
Book Volume: 29
Article Number: 175001
Journal Issue: 17
DOI: 10.1088/0264-9381/29/17/175001
Abstract
We investigate the no-boundary measure in the context of moduli stabilization. To this end, we first show that for exponential potentials, there are no classical histories once the slope exceeds a critical value. We also investigate the probability distributions given by the no-boundary wavefunction near maxima of the potential. These results are then applied to a simple model that compactifies 6D to 4D (HBSV model) with fluxes. We find that the no-boundary wavefunction effectively stabilizes the moduli of the model. Moreover, we find the a priori probability for the cosmological constant in this model. We find that a negative value is preferred, and a vanishing cosmological constant is not distinguished by the probability measure. We also discuss the application to the cosmic landscape. Our preliminary arguments indicate that the probability of obtaining anti-de Sitter space is vastly greater than that for de Sitter. © 2012 IOP Publishing Ltd.
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Korea, Republic of (KR)How to cite
APA:
Hwang, D.-i., Lee, B.-H., Sahlmann, H., & Yeom, D.-h. (2012). The no-boundary measure in string theory: Applications to moduli stabilization, flux compactification and cosmic landscape. Classical and Quantum Gravity, 29(17). https://dx.doi.org/10.1088/0264-9381/29/17/175001
MLA:
Hwang, Dong-il, et al. "The no-boundary measure in string theory: Applications to moduli stabilization, flux compactification and cosmic landscape." Classical and Quantum Gravity 29.17 (2012).
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