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Open AccessJournal ArticleDOI

Canonical and quantum FRW cosmological solutions in M-theory

TLDR
In this article, a canonical and quantum cosmological analysis of a spatially flat, four-dimensional Friedmann-Robertson-Walker (FRW) model that is derived from the M-theory effective action obtained originally by Billyard, Coley, Lidsey and Nilsson is presented.
Abstract
We present a canonical and quantum cosmological investigation of a spatially flat, four-dimensional Friedmann-Robertson-Walker (FRW) model that is derived from the M-theory effective action obtained originally by Billyard, Coley, Lidsey and Nilsson (BCLN). The analysis makes use of two sets of canonical variables, the Shanmugadhasan gauge-invariant canonical variables and the `hybrid' variables which diagonalize the Hamiltonian. We find the observables and discuss in detail the phase space of the classical theory. In particular, a region of phase space exists that describes a four-dimensional FRW spacetime first contracting from a strong-coupling regime and then expanding to a weak-coupling regime, while the internal space always contracts. We find the quantum solutions of the model and obtain the positive norm Hilbert space of states. Finally, the correspondence between wavefunctions and classical solutions is outlined.

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Citations
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Journal ArticleDOI

Characterization of the LIGO detectors during their sixth science run

J. Aasi, +887 more
TL;DR: In this paper, the authors review the performance of the LIGO instruments during this epoch, the work done to characterize the detectors and their data, and the effect that transient and continuous noise artefacts have on the sensitivity of the detectors to a variety of astrophysical sources.
Journal ArticleDOI

The pre-big bang scenario in string cosmology

TL;DR: In this paper, physical motivations, phenomenological consequences, and open problems of the so-called pre-big bang scenario in superstring cosmology are reviewed, as well as some open problems.
Book ChapterDOI

Euclidean Quantum Gravity

TL;DR: In this article, a model-by-mode evaluation of Faddeev-Popov amplitudes in the case of flat Euclidean four-space bounded by two concentric three-spheres is presented.
Book

Introduction to superstrings and M-theory

道雄 加来
TL;DR: In this article, the search for geometrical geometry was studied in light cone field theory with a focus on the Atiyah-Singer Theorem and point particle theory.
Journal ArticleDOI

De Broglie-Bohm FRW universes in quantum string cosmology

TL;DR: In this article, the de Broglie-Bohm interpretation of quantum mechanics towards superstring cosmological dynamics is investigated and the results suggest that quantum potentials yield varied types of an amplified influence of the singular classical boundary into the FRW early dynamics.
References
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Book

Table of Integrals, Series, and Products

TL;DR: Combinations involving trigonometric and hyperbolic functions and power 5 Indefinite Integrals of Special Functions 6 Definite Integral Integral Functions 7.Associated Legendre Functions 8 Special Functions 9 Hypergeometric Functions 10 Vector Field Theory 11 Algebraic Inequalities 12 Integral Inequality 13 Matrices and related results 14 Determinants 15 Norms 16 Ordinary differential equations 17 Fourier, Laplace, and Mellin Transforms 18 The z-transform
Book

Classical Mechanics

Journal ArticleDOI

Large Mass Hierarchy from a Small Extra Dimension

TL;DR: In this paper, the weak scale is generated from the Planck scale through an exponential hierarchy, but this exponential arises not from gauge interactions but from the background metric, which is a slice of spacetime.
Book

The Large Scale Structure of Space-Time

TL;DR: In this paper, the authors discuss the General Theory of Relativity in the large and discuss the significance of space-time curvature and the global properties of a number of exact solutions of Einstein's field equations.
Journal ArticleDOI

An Alternative to compactification

TL;DR: In this paper, a single 3-brane embedded in five dimensions was shown to reproduce four-dimensional Newtonian and general relativistic gravity to more than adequate precision, even without a gap in the Kaluza-Klein spectrum.