A frame-dependent gravitational effective action mimics a cosmological constant, but modifies the black hole horizon
classification
🌀 gr-qc
hep-thmath-phmath.MP
keywords
blackholehorizonactionconstantcosmologicaleffectiveinvariance
read the original abstract
A frame dependent effective action motivated by the postulates of three-space general coordinate invariance and Weyl scaling invariance exactly mimics a cosmological constant in Robertson-Walker spacetimes. However, in a static spherically symmetric Schwarzschild-like geometry it modifies the black hole horizon structure within microscopic distances of the nominal horizon, in such a way that $g_{00}$ never vanishes. This could have important implications for the black hole "information paradox".
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