107 citations · 126 across the 6 of their papers we have counts for
6 papers
Dynamical surface gravity
Alex B. Nielsen, Jong Hyuk Yoon
We discuss how the surface gravity can be classically defined for dynamical black holes. In particular we focus on defining the surface gravity for locally defined horizons and com…
Black holes as local horizons
Alex B. Nielsen
This talk gives a brief introduction to black hole horizons and their role in black hole thermodynamics. In particular a distinction is made between quasi-locally defined horizons…
Non-minimally coupled multi-scalar black holes
Ben M. Leith, Alex B. Nielsen
We study the static, spherically symmetric black hole solutions for a non-minimally coupled multi-scalar theory. We find numerical solutions for values of the scalar fields when a…
Possible polarisation and spin dependent aspects of quantum gravity
D. V. Ahluwalia-Khalilova, N. G. Gresnigt, Alex B. Nielsen +2
We argue that quantum gravity theories that carry a Lie algebraic modification of the Poincare' and Heisenberg algebras inevitably provide inhomogeneities that may serve as seeds f…
MiniBooNE and a (CP)^2 = -1 sterile neutrino
D. V. Ahluwalia-Khalilova, Alex B. Nielsen
It has been taken as granted that the observation of two independent mass-squared differences necessarily fixes the number of underlying mass eigenstates as three, and that the add…
Type Ia supernovae tests of fractal bubble universe with no cosmic acceleration
B. M. N. Carter, B. M. Leith, S. C. C. Ng +2
The unexpected dimness of Type Ia supernovae at redshifts z >~ 1 has over the past 7 years been seen as an indication that the expansion of the universe is accelerating. A new mode…