552 citations · 7.1k across the 101 of their papers we have counts for
Showing 2002Show all
3 papers · 1 filter
hep-th2002★ 13 cited
Black holes may not constrain varying constants
S. Carlip, S. Vaidya
New and rather controversial observations hint that the fine structure constant αmay have been smaller in the early universe, suggesting that some of the fundamental ``constants''…
gr-qc2002★ 7 cited
Varying Constants, Black Holes, and Quantum Gravity
S. Carlip
Tentative observations and theoretical considerations have recently led to renewed interest in models of fundamental physics in which certain ``constants'' vary in time. Assuming f…
gr-qc2002★ 128 cited
Near-Horizon Conformal Symmetry and Black Hole Entropy
S. Carlip
Near an event horizon, the action of general relativity acquires a new asymptotic conformal symmetry. Using two-dimensional dilaton gravity as a test case, I show that this symmetr…