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A geometric solution to the coincidence problem, and the size of the landscape as the origin of hierarchy
geometric solution coincidence problem landscape
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2010/12/21
Without assuming necessary conditions for observers such as galaxies or entropy production, we
show that the causal patch measure predicts the coincidence of vacuum energy and present matter
density...
Conifolds and Tunneling in the String Landscape
Conifolds Tunneling String Landscape
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2010/12/22
We investigate flux vacua on a variety of one-parameter Calabi-Yau compactifications,and find many examples that are connected through continuous monodromy transformations.