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Observational consequences of a landscape

- Ben Freivogel, M. Kleban, M. R. Martínez, L. Susskind
- Economics
- 25 May 2005

In this paper we consider the implications of the ``landscape paradigm [1], [2] for the large scale properties of the universe. The most direct implication of a rich landscape is that our local… Expand

Disturbing Implications of a Cosmological Constant

- L. Dyson, M. Kleban, L. Susskind
- Philosophy
- 1 August 2002

In this paper we consider the implications of a cosmological constant for the evolution of the universe, under a set of assumptions motivated by the holographic and horizon complementarity… Expand

The black hole singularity in AdS/CFT

- L. Fidkowski, V. Hubeny, M. Kleban, S. Shenker
- Physics
- 17 June 2003

We explore physics behind the horizon in eternal AdS Schwarzschild black holes. In dimension d > 3 , where the curvature grows large near the singularity, we find distinct but subtle signals of this… Expand

The trouble with de Sitter space

- N. Goheer, M. Kleban, L. Susskind
- Mathematics
- 17 December 2002

In this paper we assume the de Sitter space version of black hole Complementarity which states that a single causal patch of de Sitter space is described as an isolated finite temperature cavity… Expand

McVittie's Legacy: Black Holes in an Expanding Universe

- N. Kaloper, M. Kleban, D. Martin
- Physics
- 24 March 2010

We prove that a class of solutions to Einstein's equations---originally discovered by McVittie in 1933---includes regular black holes embedded in Friedmann-Robertson-Walker cosmologies. If the… Expand

Signatures of short distance physics in the cosmic microwave background

- N. Kaloper, M. Kleban, A. Lawrence, S. Shenker
- Physics
- 21 January 2002

We systematically investigate the effect of short distance physics on the spectrum of temperature anistropies in the Cosmic Microwave Background produced during inflation. We present a general… Expand

Initial Conditions for Inflation

- N. Kaloper, M. Kleban, A. Lawrence, S. Shenker, L. Susskind
- Physics
- 26 September 2002

Free scalar fields in de Sitter space have a one-parameter family of states invariant under the de Sitter group, including the standard thermal vacuum. We show that, except for the thermal vacuum,… Expand

Vacua Morghulis

- Ben Freivogel, M. Kleban
- Physics
- 14 October 2016

We conjecture that all vacua in string theory decay. More precisely, non-supersymmetric vacua in string theory are at most metastable and eventually decay, while supersymmetric vacua are only… Expand

Beginning inflation in an inhomogeneous universe

- W. East, M. Kleban, Andrei Linde, L. Senatore
- Physics
- 16 November 2015

Using numerical solutions of the full Einstein field equations coupled to a scalar inflaton field in 3+1 dimensions, we study the conditions under which a universe that is initially expanding, highly… Expand

Analyzing Cosmic Bubble Collisions

- Roberto Gobbetti, M. Kleban
- Physics
- 30 January 2012

We develop a set of controlled, analytic approximations to study the effects of bubble collisions on cosmology. We expand the initial perturbation to the inflaton field caused by the collision in a… Expand

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