406 citations
- University of Massachusetts AmherstUS13 papers
- National Institute of Astrophysics, Optics and ElectronicsMX12 papers
- University of Colorado BoulderUS10 papers
- University of PennsylvaniaUS10 papers
- National Astronomical Observatory of JapanJP7 papers
- The University of TokyoJP7 papers
- California Institute of TechnologyUS6 papers
- University of EdinburghGB5 papers
- Durham UniversityGB4 papers
- Royal ObservatoryGB4 papers
- UK Astronomy Technology CentreGB4 papers
- Cardiff UniversityGB3 papers
5 papers · 1 filter
Extremal Black holes and the limits of the third law
Stefano Liberati, Tony Rothman, Sebastiano Sonego
Recent results of quantum field theory on a curved spacetime suggest that extremal black holes are not thermal objects and that the notion of zero temperature is ill-defined for th…
Holonomy in the Schwarzschild-Droste Geometry
Tony Rothman, George F. R. Ellis, Jeff Murugan
Parallel transport of vectors in curved spacetimes generally results in a deficit angle between the directions of the initial and final vectors. We examine such holonomy in the Sch…
Nonthermal nature of extremal Kerr black holes
Tony Rothman
Liberati, Rothman and Sonego have recently showed that objects collapsing into extremal Reissner-Nordstrom black holes do not behave as thermal objects at any time in their history…
Nonthermal nature of incipient extremal black holes
S. Liberati, T. Rothman, S. Sonego
We examine particle production from spherical bodies collapsing into extremal Reissner-Nordström black holes. Kruskal coordinates become ill-defined in the extremal case, but we ar…
A Phase Space Approach to Gravitational Enropy
Tony Rothman
We examine the definition S = ln Omega as a candidate "gravitational entropy" function. We calculate its behavior for gravitationl and density perturbations in closed, open and fla…