Top Quark Production from Black Holes at the CERN LHC (2008)
Chamblin, Andrew, Cooper, Fred, Nayak, Gouranga C.
LHC is expected to be a top quark factory. If the fundamental Planck scale is near a TeV, then we also expect the top quarks to be produced from black holes via Hawking radiation. In this paper we...
Alpha-Vacua, Black Holes, and AdS/CFT (2006)
Chamblin, Andrew, Michelson, Jeremy
The Schwarzschild, Schwarzschild-AdS, and Schwarzschild-de Sitter solutions all admit freely acting discrete involutions which commute with the continuous symmetries of the spacetimes. Intuitively,...
SUSY Production From TeV Scale Blackhole at LHC (2004)
Chamblin, Andrew, Cooper, Fred, Nayak, Gouranga C.
If the fundamental Planck scale is near a TeV, then we should expect to see TeV scale black holes at the LHC. Similarly, if the scale of supersymmetry breaking is sufficiently low, then we might...
Twistors and Holography (2004)
We extend Bousso's notion of a lightsheet - a surface where entropy can be defined in a way so that the entropy bound is satisfied - to more general surfaces. Intuitively these surfaces may be...
Interaction of a TeV Scale Black Hole with the Quark-Gluon Plasma at LHC (2003)
Chamblin, Andrew, Cooper, Fred, Nayak, Gouranga C.
If the fundamental Planck scale is near a TeV, then parton collisions with high enough center-of-mass energy should produce black holes. The production rate for such black holes has been extensively...
Holographic Weyl Entropy Bounds (2003)
Chamblin, Andrew, Erlich, Joshua
We consider the entropy bounds recently conjectured by Fischler, Susskind and Bousso, and proven in certain cases by Flanagan, Marolf and Wald (FMW). One of the FMW derivations supposes a covariant...
Black Hole Production at LHC: String Balls and Black Holes from pp and Lead-lead Collisions (2002)
Chamblin, Andrew, Nayak, Gouranga C.
If the fundamental planck scale is near a TeV, then parton collisions with high enough center-of-mass energy should produce black holes. The production rate for such black holes at LHC has been...
Zero-Branes, Quantum Mechanics and the Cosmological Constant (2001)
Chamblin, Andrew, Lambert, Neil D.
We analyse some dynamical issues in a modified type IIA supergravity, recently proposed as an extension of M-theory that admits de Sitter space. In particular we find that this theory has multiple...
Charged Brane-World Black Holes (2001)
Chamblin,Andrew, Reall,Harvey S., Shinkai,Hisa-aki, Shiromizu,Tetsuya
We study charged brane-world black holes in the model of Randall and Sundrum in which our universe is viewed as a domain wall in asymptotically anti-de Sitter space. Such black holes can carry two...
de Sitter space from M-theory? (2001)
Chamblin, Andrew, Lambert, Neil D.
In this note we study a massive IIA supergravity theory obtained in hep-th/9707139 by compactification of M-theory. We point out that de Sitter space in arbitrary dimensions arises naturally as the...
Charged Brane-World Black Holes (2001)
Chamblin, Andrew, Reall, Harvey S., Shinkai, Hisa-aki, Shiromizu, Tetsuya
We study charged brane-world black holes in the model of Randall and Sundrum in which our universe is viewed as a domain wall in asymptotically anti-de Sitter space. Such black holes can carry two...
A Bestiary of Higher Dimensional Taub-NUT-AdS Spacetimes (2000)
We present a menagerie of solutions to the vacuum Einstein equations in six, eight and ten dimensions. These solutions describe spacetimes which are either locally asymptotically adS or locally...
Capture of bulk geodesics by brane-world black holes (2000)
In this note we study bulk timelike geodesics in the presence of a brane-world black hole, where the brane-world is a two-brane moving in a 3+1-dimensional asymptotically $adS_4$ spacetime. We show...
Charged Brane-World Black Holes (2000)
Chamblin, Andrew, Reall, Harvey S., Shinkai, Hisa-aki, Shiromizu, Tetsuya
We study charged brane-world black holes in the model of Randall and Sundrum in which our universe is viewed as a domain wall in asymptotically anti-de Sitter space. Such black holes can carry two...
Black Diamonds at Brane Junctions (2000)
Chamblin, Andrew, Csaki, Csaba, Erlich, Joshua, Hollowood, Timothy J.
We discuss the properties of black holes in brane-world scenarios where our universe is viewed as a four-dimensional sub-manifold of some higher-dimensional spacetime. We consider in detail such a...
Puncture of gravitating domain walls (1999)
Chamblin, Andrew, Eardley, Douglas M.
We investigate the semi-classical instability of vacuum domain walls to processes where the domain walls decay by the formation of closed string loop boundaries on their worldvolumes. Intuitively, a...
Holography, Thermodynamics and Fluctuations of Charged AdS Black Holes (1999)
Chamblin, Andrew, Emparan, Roberto, Johnson, Clifford V., Myers, Robert C.
The physical properties of Reissner-Nordstrom black holes in (n+1)-dimensional anti-de Sitter spacetime are related, by a holographic map, to the physics of a class of n-dimensional field theories...
Charged AdS Black Holes and Catastrophic Holography (1999)
Chamblin, Andrew, Emparan, Roberto, Johnson, Clifford V., Myers, Robert C.
We compute the properties of a class of charged black holes in anti-de Sitter space-time, in diverse dimensions. These black holes are solutions of consistent Einstein-Maxwell truncations of gauged...
Large N Phases, Gravitational Instantons and the Nuts and Bolts of AdS Holography (1998)
Chamblin, Andrew, Emparan, Roberto, Johnson, Clifford V., Myers, Robert C.
Recent results in the literature concerning holography indicate that the thermodynamics of quantum gravity (at least with a negative cosmological constant) can be modeled by the large N...
Open inflation from non-singular instantons: Wrapping the universe with a membrane (1998)
Bousso, Raphael, Chamblin, Andrew
The four-form field recently considered by Hawking and Turok couples naturally to a charged membrane, across which the effective cosmological constant has a discontinuity. We present instantons for...
Patching up the No-Boundary Proposal with virtual Euclidean wormholes (1998)
Bousso, Raphael, Chamblin, Andrew
In quantum cosmology, one often considers tunneling phenomena which may have occurred in the early universe. Processes requiring quantum penetration of a potential barrier include black hole pair...
On the superselection sectors of fermions (1997)
We classify elementary particles according to their behaviour under the action of the full inhomogeneous Lorentz group. For fundamental fermions, this approach leads us to delineate fermions into...
Pair Creation of Black Holes by Domain Walls (1996)
Caldwell, Robert, Chamblin, Andrew, Gibbons, Gary
In this paper we study the production of pairs of neutral and charged black holes by domain walls, finding classical solutions and calculating their classical actions. We find that neutral black...
Topology and Time Reversal (1995)
Chamblin, Andrew, Gibbons, G. W.
In this lecture we address some topological questions connected with the existence on a general spacetime manifold of diffeomorphisms connected to the identity which reverse the time-orientation.
Topology and Causal Structure (1995)
We investigate the causal structure of spacetimes $(M, g)$ for which the metric $g$ is singular on a set of points.
Some applications of differential topology in general relativity (1995)
Recently, there have been several applications of differential and algebraic topology to problems concerned with the global structure of spacetimes. In this paper, we derive obstructions to the...
On the Obstructions to non-Cliffordian Pin Structures (1995)
We derive the topological obstructions to the existence of non-Cliffordian pin structures on four-dimensional spacetimes. We apply these obstructions to the study of non-Cliffordian pin-Lorentz...
Chamblin, Andrew, Gibbons, G. W.
This note contains some comments on a recent paper by Friedman on two-component spinors in spacetimes which do not admit a time-orientation, and is intended to clarify the relation of the work...
Kinks and Time Machines (1994)
Chamblin, Andrew, Gibbons, Gary, Steif, Alan R.
We show that it is not possible to smooth out the metric on the Deutsch-Politzer time machine to obtain an everywhere non-singular asymptotically flat Lorentzian metric.
Spin Structures on Kleinian Manifolds (1993)
We derive the topological obstruction to spin-Klein cobordism. This result has implications for signature change in general relativity, and for the $N=2$ superstring.