On the Origin of the Outgoing Black Hole Modes

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  • 12 January 1996
Abstract
The question of how to account for the outgoing black hole modes without drawing upon a transplanckian reservoir at the horizon is addressed. It is argued that the outgoing modes must arise via conversion from ingoing modes. It is further argued that the back-reaction must be included to avoid the conclusion that particle creation cannot occur in a strictly stationary background. The process of mode conversion is illustrated in a linear Lorentz non-invariant model introduced by Unruh. The role of interactions and a physical short distance cutoff is examined in the sonic black hole formed with Helium-II.

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