A New Spin on Quantum Gravity

Details A New Spin on Quantum Gravity A New Spin on Quantum Gravity

2007-03-14

arxiv.org/abs/hep-th/0703133v3

Int.J.Mod.Phys.D17:567-570, 2008

Physics

High Energy Physics

High Energy Physics - Theory

6 pages; Honorable Mention in the 2007 Gravity Research Foundation Essay Competition

Scientific paper

10.1142/S0218271808012279

We suggest that the (small but nonvanishing) cosmological constant, and the holographic properties of gravitational entropy, may both reflect unconventional quantum spin-statistics at a fundamental level. This conjecture is motivated by the nonlocality of quantum gravity and the fact that spin is an inherent property of spacetime. As an illustration we consider the `quon' model which interpolates between fermi and bose statistics, and show that this can naturally lead to an arbitrarily small cosmological constant. In addition to laboratory tests, we briefly discuss the possible observable imprint on cosmological fluctuations from inflation.

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