Time Machine at the LHC

Details Time Machine at the LHC Time Machine at the LHC

2007-10-15

arxiv.org/abs/0710.2696v2

Int.J.Geom.Meth.Mod.Phys.05:641-651,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, LATEX, comments and references added

Scientific paper

10.1142/S0219887808002977

Recently, black hole and brane production at CERN's Large Hadron Collider (LHC) has been widely discussed. We suggest that there is a possibility to test causality at the LHC. We argue that if the scale of quantum gravity is of the order of few TeVs, proton-proton collisions at the LHC could lead to the formation of time machines (spacetime regions with closed timelike curves) which violate causality. One model for the time machine is a traversable wormhole. We argue that the traversable wormhole production cross section at the LHC is of the same order as the cross section for the black hole production. Traversable wormholes assume violation of the null energy condition (NEC) and an exotic matter similar to the dark energy is required. Decay of the wormholes/time machines and signatures of time machine events at the LHC are discussed.

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