We study the vacuum statistics of ensembles of M theory compactifications on G(2) holonomy manifolds with fluxes, and of ensembles of Freund-Rubin vacua. We discuss similarities and differences between these and type-IIB flux landscapes. For the G2 ensembles, we find that large volumes are strongly suppressed, and for both, unlike the IIB case, the distribution of cosmological constants is non-uniform. We also argue that these ensembles typically have exponentially more non-supersymmetric than supersymmetric vacua, and show that supersymmetry is virtually always broken at a high scale.



Titolo: Statistics of M theory vacua
Autori: 
VALANDRO, ROBERTO
mostra contributor esterni 
Data di pubblicazione: 2005
Rivista: 
JOURNAL OF HIGH ENERGY PHYSICS  
Abstract: We study the vacuum statistics of ensembles of M theory compactifications on G(2) holonomy manifolds with fluxes, and of ensembles of Freund-Rubin vacua. We discuss similarities and differences between these and type-IIB flux landscapes. For the G2 ensembles, we find that large volumes are strongly suppressed, and for both, unlike the IIB case, the distribution of cosmological constants is non-uniform. We also argue that these ensembles typically have exponentially more non-supersymmetric than supersymmetric vacua, and show that supersymmetry is virtually always broken at a high scale.
Handle: http://hdl.handle.net/11368/2876705
Digital Object Identifier (DOI): http://dx.doi.org/10.1088/1126-6708/2005/06/056
Appare nelle tipologie:1.1 Articolo in Rivista

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