Tuesday, August 6, 2013

1308.0687 (Julian Rennert et al.)

Anisotropic Spinfoam Cosmology    [PDF]

Julian Rennert, David Sloan
The dynamics of a homogeneous, anisotropic universe are investigated within the context of spinfoam cosmology. Transition amplitudes are calculated for a graph consisting of a single node and three links - the `Daisy graph' - probing the behaviour a classical Bianchi I spacetime. It is shown further how the use of such single node graphs gives rise to a simplification of states such that all orders in the spin expansion can be calculated, indicating that it is the vertex expansion that contains information about quantum dynamics.
View original: http://arxiv.org/abs/1308.0687

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