Search Results - "Parikh, Maulik K"
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New coordinates for de Sitter space and de Sitter radiation
Published in Physics letters. B (24-10-2002)“…We introduce a simple coordinate system covering half of de Sitter space. The new coordinates have several attractive properties: the time direction is a…”
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2
Holography and rotating AdS black holes
Published in Physics letters. B (1999)“…We probe the AdS/CFT correspondence by comparing the thermodynamics of a rotating black hole in five-dimensional anti-de Sitter space with that of a conformal…”
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3
Global structure of evaporating black holes
Published in Physics letters. B (1999)“…By extending the charged Vaidya metric to cover all of spacetime, we obtain a Penrose diagram for the formation and evaporation of a charged black hole. In…”
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Hawking radiation As tunneling
Published in Physical review letters (11-12-2000)“…We present a short and direct derivation of Hawking radiation as a tunneling process, based on particles in a dynamical geometry. The imaginary part of the…”
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Confinement and the AdS/CFT correspondence
Published in Physics letters. B (15-06-2000)“…We study the thermodynamics of the confined and unconfined phases of N=4 Yang-Mills in finite volume and at large N using the AdS/CFT correspondence. We…”
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6
Volume of black holes
Published in Physical review. D, Particles, fields, gravitation, and cosmology (15-06-2006)Get full text
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7
No Open or Flat Bouncing Cosmologies in Einstein Gravity
Published 19-01-2015“…We show that bouncing open or flat Friedmann-Robertson-Walker cosmologies are inconsistent with worldsheet string theory to first approximation. Specifically,…”
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8
De Sitter brane gravity: from close-up to panorama
Published in Physics letters. B (29-03-2001)“…We find explicitly the induced graviton propagator on de Sitter branes embedded in various five-dimensional spacetimes; de Sitter branes in AdS and Minkowski…”
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When UV and IR Collide: Inequivalent CFTs From Different Foliations Of AdS
Published 16-07-2014“…Phys. Rev. D 93, 046004 (2016) In the AdS/CFT correspondence, CFTs are identified by asymptotic boundary surfaces and the boundary conditions imposed on those…”
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Enhanced Instability of de Sitter Space in Einstein-Gauss-Bonnet Gravity
Published 18-09-2009“…Phys.Rev.D84:044048,2011 We show that the addition of a topological Gauss-Bonnet term to the gravitational action can greatly increase the instability of…”
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Beyond the Einstein Equation of State: Wald Entropy and Thermodynamical Gravity
Published 06-03-2009“…Entropy 18 (2016) 119 We show that the classical equations of gravity follow from a thermodynamic relation, dQ = T dS, where S is taken to be the Wald entropy,…”
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12
The Volume of Black Holes
Published 16-08-2005“…Phys.Rev. D73 (2006) 124021 We propose a definition of volume for stationary spacetimes. The proposed volume is independent of the choice of stationary…”
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A Secret Tunnel Through The Horizon
Published 19-05-2004“…Int.J.Mod.Phys.D13:2351-2354,2004; Gen.Rel.Grav.36:2419-2422,2004 Hawking radiation is often intuitively visualized as particles that have tunneled across the…”
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14
Energy Conservation and Hawking Radiation
Published 23-02-2004“…The conservation of energy implies that an isolated radiating black hole cannot have an emission spectrum that is precisely thermal. Moreover, the no-hair…”
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15
New Coordinates for de Sitter Space and de Sitter Radiation
Published 14-04-2002“…Phys.Lett.B546:189-195,2002 We introduce a simple coordinate system covering half of de Sitter space. The new coordinates have several attractive properties:…”
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16
An action for black hole membranes
Published in Physical review. D, Particles and fields (15-09-1998)Get full text
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17
De Sitter Space With Finitely Many States: A Toy Story
Published 12-03-2004“…The finite entropy of de Sitter space suggests that in a theory of quantum gravity there are only finitely many states. It has been argued that in this case…”
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Phases of Thermal Super Yang-Mills
Published 19-08-2000“…Mod.Phys.Lett.A15:655-674,2000 We review the thermodynamics of the confined and unconfined phases of superconformal Yang-Mills at large N on a three-sphere,…”
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19
Smooth Initial Conditions from Weak Gravity
Published 15-02-2011“…Phys.Lett.B697:178-183,2011 CMB measurements reveal an unnaturally smooth early universe. We propose a mechanism to make this smoothness natural by weakening…”
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Membrane Horizons: The Black Hole's New Clothes
Published 01-07-1999“…This thesis addresses some classical and semi-classical aspects of black holes using an effective membrane representation of the event horizon. The classical…”
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