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pro vyhledávání: '"Carlip, Steven"'
Autor:
Carlip, Steven
Causal set theory offers a simple and elegant picture of discrete physics. But the vast majority of causal sets look nothing at all like continuum spacetimes, and must be excluded in some way to obtain a realistic theory. I describe recent results sh
Externí odkaz:
http://arxiv.org/abs/2405.14059
Publikováno v:
Int. J. Mod. Phys. D, Vol. 24, No. 11 (2015) 1530028
We present a bird's-eye survey on the development of fundamental ideas of quantum gravity, placing emphasis on perturbative approaches, string theory, loop quantum gravity, and black hole thermodynamics. The early ideas at the dawn of quantum gravity
Externí odkaz:
http://arxiv.org/abs/1507.08194
Autor:
Anderson, Christian, Carlip, Steven, Cooperman, Joshua H., Horava, Petr, Kommu, Rajesh, Zulkowski, Patrick R.
We extend the discrete Regge action of causal dynamical triangulations to include discrete versions of the curvature squared terms appearing in the continuum action of (2+1)-dimensional projectable Horava-Lifshitz gravity. Focusing on an ensemble of
Externí odkaz:
http://arxiv.org/abs/1111.6634
Autor:
Carlip, Steven
Publikováno v:
Entropy 2011, 13(7), 1355-1379
It is no longer considered surprising that black holes have temperatures and entropies. What remains surprising, though, is the universality of these thermodynamic properties: their exceptionally simple and general form, and the fact that they can be
Externí odkaz:
http://arxiv.org/abs/1107.2678
Autor:
Carlip, Steven
Several lines of evidence hint that quantum gravity at very small distances may be effectively two-dimensional. I summarize the evidence for such ``spontaneous dimensional reduction,'' and suggest an additional argument coming from the strong-couplin
Externí odkaz:
http://arxiv.org/abs/1009.1136
Autor:
Carlip, Steven
Several lines of evidence suggest that quantum gravity at very short distances may behave effectively as a two-dimensional theory. I summarize these hints, and offer an additional argument based on the strong-coupling limit of the Wheeler-DeWitt equa
Externí odkaz:
http://arxiv.org/abs/0909.3329
Autor:
Carlip, Steven
Publikováno v:
Lect.Notes Phys.769:89-123,2009
We have known for more than thirty years that black holes behave as thermodynamic systems, radiating as black bodies with characteristic temperatures and entropies. This behavior is not only interesting in its own right; it could also, through a stat
Externí odkaz:
http://arxiv.org/abs/0807.4520
Autor:
Carlip, Steven
Publikováno v:
J.Phys.Conf.Ser.67:012022,2007
A key test of any quantum theory of gravity is its ability to reproduce the known thermodynamic properties of black holes. A statistical mechanical description of the Bekenstein-Hawking entropy once seemed remote, but today we suffer an embarrassment
Externí odkaz:
http://arxiv.org/abs/gr-qc/0702094