M theory observables for cosmological space-times

By T. Banks, W. Fischler. 2001

215 citations recorded by the source corpus.

We discuss the construction of the analog of an S-matrix for space-times that begin with a Big-Bang and asymptote to an FRW universe with nonnegative cosmological constant. When the cosmological constant is positive there are many such S-matrices, related mathematically by gauge transformations and physically by an analog of the principle of black hole complementarity. In the limit of vanishing $\Lambda$ these become (approximate) Poincare transforms of each other. Considerations of the initial state require a quantum treatment of space-time, and some preliminary steps towards constructing such a theory are proposed. In this context we propose a model for the earliest semiclassical state of the universe, which suggests a solution for the horizon problem different from that provided by inflation.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/0529029323a9b7400131a0507885358db0cf96fc

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. V. Hubeny
2. R. Myers
3. M. Rangamani
4. D. Harlow
5. J. Maldacena
6. D. Stanford
7. L. Susskind
8. T. Takayanagi

In Nuclear and High Energy Physics

1. V. Hubeny
2. R. Myers
3. J. Maldacena
4. D. Harlow
5. T. Takayanagi
6. D. Stanford
7. M. Rangamani
8. L. Susskind

In Statistical and Nonlinear Physics

1. V. Hubeny
2. R. Myers
3. D. Stanford
4. D. Harlow
5. Andrew Strominger
6. M. Rangamani
7. S. Shenker
8. T. Takayanagi

Citations in the corpus

• Inflation and the dS/CFT Correspondence (2001, result): “1 This conjecture followed related observations in [5-17], and was inspired by an analogy to related early [18] and modern [19-21] results obtained in AdS (anti-de Sitter space) .”
• Solvable model of strings in a time-dependent plane-wave background (2002, background): “, [1, 2, 3, 4, 5, 6, 7] for recent reviews, discussions and references).”
• Quantum Gravity In De Sitter Space (2001, background): “(For a recent discussion of related issues see [13].”
• A Measure of de Sitter entropy and eternal inflation (2007, background): “How can we transfer these relatively wellestablished lessons to de Sitter space and eternal inflation [7]? In this note we begin with a brief discussion of why locality is necessarily an approximate concept in quantum gravity, and why the failure of locality can sometimes manifest itself macroscopic”
• From big bang to big crunch and beyond (2002, background): “It might be that quantum gravity in fact simplifies near such singularities [1], but a satisfactory demonstration of that is currently lacking.”
• A)dS Backgrounds from Asymmetric Orientifolds (2001, unknown): “These difficulties may well have resolutions [26][27][19],”
• Spontaneous inflation and the origin of the arrow of time (2004, background): “An interesting perspective on the likelihood of different initial conditions for the universe arises from the causal-patch description of spacetime [52, 53, 54, 55].”
• Inflation in AdS/CFT (2005, background): “These constructions do not answer many of the deep questions raised by inflation: How can inflation begin? What measure should be used on the multiverse of eternal inflation? What is the holographic description of inflation? More generally, what degrees of freedom are appropriate for a complete desc”
• The dS/CFT correspondence (2001, unknown): “Recent discussions of de Sitter thermodynamics include[7-20].”
• Cosmology and the S matrix (2004, background): “s in de Sitter space, see, e.g., Ref. [12]. A broad discussion of the problem of observables in cosmolochangeably. – 3 – gies with a non-positive cosmological constant was given by Banks and Fischler [5], who noted that in a non-compact universe, an S-matrix description must restrict to states with ”