Wednesday, October 3, 2012

1210.0753 (Aharon Davidson et al.)

Can an evolving Universe host a static event horizon?    [PDF]

Aharon Davidson, Shimon Rubin, Yosef Verbin
We prove the existence of general relativistic perfect fluid black hole solutions, and demonstrate the phenomenon for the $P=w\rho$ class of equations of state. While admitting a local time-like Killing vector on the event horizon itself, the various black hole configurations are necessarily time dependent (thereby avoiding a well known no-go theorem) away from the horizon. Consistently, Hawking's imaginary time periodicity is globally manifest on the entire spacetime manifold.
View original: http://arxiv.org/abs/1210.0753

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