De Sitter Space In Non Critical String Theory
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De Sitter Space In Non Critical String Theory
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Author :
language : en
Publisher:
Release Date : 2002
De Sitter Space In Non Critical String Theory written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Supercritical string theories in D> 10 dimensions with no moduli are described, generalizing the asymmetric orientifold construction of one of the authors [1]. By taking the number of dimensions to be large and turning on fluxes, dilaton potentials are generated with nontrivial minima at arbitrarily small cosmological constant and D-dimensional string coupling, separated by a barrier from a flat-space linear dilaton region, but possibly suffering from strong coupling problems. The general issue of the decay of a de Sitter vacuum to flat space is discussed. For relatively small barriers, such decays are described by gravitational instantons. It is shown that for a sufficiently large potential barrier, the bubble wall crosses the horizon. At the same time the instanton decay time exceeds the Poincare recurrence time. It is argued that the inclusion of such instantons is neither physically meaningful nor consistent with basic principles such as causality. This raises the possibility that such de Sitter vacua are effectively stable. In the case of the supercritical flux models, decays to the linear dilaton region can be forbidden by such large barriers, but decays to lower flux vacua including AdS minima nevertheless proceed consistently with this criterion. These models provide concrete examples in which cosmological constant reduction by flux relaxation can be explored.
Towards A String Theory Model Of De Sitter Space And Early Universe Cosmology
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Author : Jonathan David Maltz
language : en
Publisher:
Release Date : 2013
Towards A String Theory Model Of De Sitter Space And Early Universe Cosmology written by Jonathan David Maltz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
String theory is arguably the best candidate for a theory of quantum gravity and unified interactions. Reconciling Einstein's theory of General Relativity with Quantum Mechanics. The theory however is best understood on Minkowski and Anti-de Sitter space-times, and not on exponentially expanding space-times with positive cosmological constant, like our own universe. There is still no satisfactory formulation of String Theory on these so called asymptotically de Sitter space times. In this thesis I will discuss certain avenues of progress towards a String Theory formulation of de Sitter space-times. Specifically, how understanding of the analytic continuations of Liouville Theory and how to gauge-fix it in the Timelike regime will aid in the understanding of the proposed FRW-CFT duality of de Sitter space. It is also discussed how non-trivial topology effects proposed Chern-Simons Matter duals of Vasiliev Higher Spin gravity theories which are important in the dS-CFT description of de Sitter Space.
String Theory In Anti De Sitter Space
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Author : Michael A. Lomholt
language : en
Publisher:
Release Date : 2001
String Theory In Anti De Sitter Space written by Michael A. Lomholt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Progress In String Field And Particle Theory
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Author : L. Baulieu
language : en
Publisher: Springer Science & Business Media
Release Date : 2003-09-30
Progress In String Field And Particle Theory written by L. Baulieu and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-09-30 with Science categories.
The NATO Advanced Study Institute and EC Summer School "Progress in String Field and Particle Theory" was held in Cargse from June 25th till July 11th 2002. The main focus of the school was the recent progress in the very ac tive areas of superstring theory, quantum gravity and the theory of elementary particles. It covered topical problems in domains such as duality between gravity and gaugeinteractions, string field theory, tachyon condensation, non-commutative field theory, string cosmology and string phenomenology. The School featured daily introductory lectures and topical seminars. An informal Gong Show session allowed young post-doctoral researchers and senior graduate students to make a concise presentation oftheir current work. The School gave an excellent opportunity to the youngest researchers to establish a close relationship with their seniors and with the lecturers. These proceedings will further serve in fixing the acquired knowledge, and hopefully, become a useful reference for anyone working in this fascinating do main of physics. Some of the contributions provide an elementary introduction to their subject, while other ones are more geared to the specialist. We are deeply indebted to the NATO Division for Scientific Affairs for funding, and for their constant attention for our meetings, and to the European Commission for a High-Level Scientific Conference grant HPCFCT 2001-00298.
Aspects Of String Theory In Anti De Sitter Space
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Author : Jonathan Eric Tannenhauser
language : en
Publisher:
Release Date : 2001
Aspects Of String Theory In Anti De Sitter Space written by Jonathan Eric Tannenhauser and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
String Theory On Five Dimensional Anti De Sitter Space Times
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Author : Diego M. Hofman
language : en
Publisher:
Release Date : 2009
String Theory On Five Dimensional Anti De Sitter Space Times written by Diego M. Hofman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Progress In String Field And Particle Theory
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Author : L. Baulieu
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Progress In String Field And Particle Theory written by L. Baulieu and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The NATO Advanced Study Institute and EC Summer School "Progress in String Field and Particle Theory" was held in Cargse from June 25th till July 11th 2002. The main focus of the school was the recent progress in the very ac tive areas of superstring theory, quantum gravity and the theory of elementary particles. It covered topical problems in domains such as duality between gravity and gaugeinteractions, string field theory, tachyon condensation, non-commutative field theory, string cosmology and string phenomenology. The School featured daily introductory lectures and topical seminars. An informal Gong Show session allowed young post-doctoral researchers and senior graduate students to make a concise presentation oftheir current work. The School gave an excellent opportunity to the youngest researchers to establish a close relationship with their seniors and with the lecturers. These proceedings will further serve in fixing the acquired knowledge, and hopefully, become a useful reference for anyone working in this fascinating do main of physics. Some of the contributions provide an elementary introduction to their subject, while other ones are more geared to the specialist. We are deeply indebted to the NATO Division for Scientific Affairs for funding, and for their constant attention for our meetings, and to the European Commission for a High-Level Scientific Conference grant HPCFCT 2001-00298.
The Future Of Theoretical Physics And Cosmology
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Author : G. W. Gibbons
language : en
Publisher: Cambridge University Press
Release Date : 2003-10-23
The Future Of Theoretical Physics And Cosmology written by G. W. Gibbons and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-10-23 with Biography & Autobiography categories.
Based on lectures given in honour of Stephen Hawking's sixtieth birthday, this book comprises contributions from some of the world's leading theoretical physicists. It begins with a section containing chapters by successful scientific popularisers, bringing to life both Hawking's work and other exciting developments in physics. The book then goes on to provide a critical evaluation of advanced subjects in modern cosmology and theoretical physics. Topics covered include the origin of the universe, warped spacetime, cosmological singularities, quantum gravity, black holes, string theory, quantum cosmology and inflation. As well as providing a fascinating overview of the wide variety of subject areas to which Stephen Hawking has contributed, this book represents an important assessment of prospects for the future of fundamental physics and cosmology.
String Theory And Its Applications
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Author : Michael Dine
language : en
Publisher: World Scientific
Release Date : 2011-09-30
String Theory And Its Applications written by Michael Dine and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-30 with Science categories.
The book is based on lectures given at the TASI summer school of 2010. It aims to provide advanced graduate students, postdoctorates and senior researchers with a survey of important topics in particle physics and string theory, with special emphasis on applications of methods from string theory and quantum gravity in condensed matter physics and QCD (especially heavy ion physics).
String Theory From Gauge Interactions To Cosmology
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Author : Laurent Baulieu
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-06-26
String Theory From Gauge Interactions To Cosmology written by Laurent Baulieu and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-06-26 with Science categories.
String Theory is our current best candidate for the unification of all fundamental forces, including gravity, in a consistent quantum framework. In this collection of lectures delivered at the Cargèse Summer School "String Theory: from Gauge Interactions to Cosmology'', world leading experts provide an up-to-date survey of the latest developments in this topic, including the gauge/gravity correspondence, superstring cosmology and cosmic strings, topological string theory and matrix models, physics beyond the standard model and the landscape of vacua of string theory, conformal field theory and critical phenomena in statistical mechanics. Many more topics are also discussed in shorter contributions by School participants. Written with an emphasis on pedagogy, this volume will be a invaluable resource to students and experts alike.