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Deparametrization And Path Integral Quantization Of Cosmological Models

Deparametrization And Path Integral Quantization Of Cosmological Models PDF Author: Claudio Simeone
Publisher: World Scientific
ISBN: 9814490156
Category : Science
Languages : en
Pages : 152

Book Description
The problem of time is a central feature of quantum cosmology: differing from ordinary quantum mechanics, in cosmology there is nothing “outside” the system which plays the role of clock, and this makes difficult the obtention of a consistent quantization. A possible solution is to assume that a subset of the variables describing the state of the universe can be a clock for the remaining of the system. Following this line, in this book a new proposal consisting in the previous identification of time by means of gauge fixation is applied to the quantization of homogeneous cosmological models. Both path integral and canonical formulations are studied for relativistic and string cosmologies; in particular, a complete chapter about low energy string cosmology is included. The required basic concepts (as for example the Hamiltonian formulation of General Relativity) are reviewed, so that the book can be of interest not only for a researcher but also for a student.

Deparametrization And Path Integral Quantization Of Cosmological Models

Deparametrization And Path Integral Quantization Of Cosmological Models PDF Author: Claudio Simeone
Publisher: World Scientific
ISBN: 9814490156
Category : Science
Languages : en
Pages : 152

Book Description
The problem of time is a central feature of quantum cosmology: differing from ordinary quantum mechanics, in cosmology there is nothing “outside” the system which plays the role of clock, and this makes difficult the obtention of a consistent quantization. A possible solution is to assume that a subset of the variables describing the state of the universe can be a clock for the remaining of the system. Following this line, in this book a new proposal consisting in the previous identification of time by means of gauge fixation is applied to the quantization of homogeneous cosmological models. Both path integral and canonical formulations are studied for relativistic and string cosmologies; in particular, a complete chapter about low energy string cosmology is included. The required basic concepts (as for example the Hamiltonian formulation of General Relativity) are reviewed, so that the book can be of interest not only for a researcher but also for a student.

Field Theory: A Path Integral Approach (Third Edition)

Field Theory: A Path Integral Approach (Third Edition) PDF Author: Ashok Das
Publisher: World Scientific
ISBN: 9811202567
Category : Science
Languages : en
Pages : 489

Book Description
This unique book describes quantum field theory completely within the context of path integrals. With its utility in a variety of fields in physics, the subject matter is primarily developed within the context of quantum mechanics before going into specialized areas.All the existing chapters of the previous edition have been expanded for more clarity. The chapter on anomalies and the Schwinger model has been completely rewritten for better logical clarity. Two new chapters have been added at the request of students and faculty worldwide. The first describes Schwinger's proper time method with simple examples both at zero and at finite temperature while the second develops the idea of zeta function regularization with simple examples.This latest edition is a comprehensive and much expanded version of the original text.

Field Theory: A Path Integral Approach (2nd Edition)

Field Theory: A Path Integral Approach (2nd Edition) PDF Author: Ashok Das
Publisher: World Scientific
ISBN: 9814477680
Category : Science
Languages : en
Pages : 377

Book Description
New Edition: Field Theory (3rd Edition)This unique book describes quantum field theory completely within the context of path integrals. With its utility in a variety of fields in physics, the subject matter is primarily developed within the context of quantum mechanics before going into specialized areas.Adding new material keenly requested by readers, this second edition is an important expansion of the popular first edition. Two extra chapters cover path integral quantization of gauge theories and anomalies, and a new section extends the supersymmetry chapter, where singular potentials in supersymmetric systems are described.

Quantum Cosmology Research Trends

Quantum Cosmology Research Trends PDF Author: Albert Reimer
Publisher: Nova Publishers
ISBN: 9781594543203
Category : Science
Languages : en
Pages : 218

Book Description


Foundations Of Quantum Field Theory

Foundations Of Quantum Field Theory PDF Author: Klaus D Rothe
Publisher: World Scientific
ISBN: 9811221944
Category : Science
Languages : en
Pages : 350

Book Description
Based on a two-semester course held at the University of Heidelberg, Germany, this book provides a solid basis for postgraduate students wishing to obtain a more profound understanding of the foundations of Quantum Field Theory. The book covers a wide spectrum of topics ranging from traditional operator and modern path integral methods, to different regularization and renormalization methods, asymptotic behavior of Green functions, a particular view on the Renormalization Group, and spontaneous symmetry breaking in effective potentials. Much effort has been made to present the material in a transparent, detailed and structured way, which should help the reader to follow the material.

Trends in General Relativity and Quantum Cosmology

Trends in General Relativity and Quantum Cosmology PDF Author: Charles V. Benton
Publisher: Nova Publishers
ISBN: 9781594547942
Category : Science
Languages : en
Pages : 172

Book Description
Cosmology deals with the nature of the universe. It can be broadly divided into three great ages. The first began in the 6th century BC with the Pythagorean concept of a spherical Earth that is part of a universe in which the motions of the planets are governed by the harmonious relations of natural laws. The second began in the 16th century with the Copernican revolution. This in turn led into Newton's infinite universe. The third began in the early 20th century with Albert Einstein's theory of general relativity and developed into the expanding universe we know today. Einstein's general theory of relativity extended the new space and time concepts of the special theory of relativity from the domain of electric and magnetic phenomena to all of physics and, particularly, to the theory of gravitation. By building on Einstein's previous work on special relativity, general relativity sought to deal with accelerating frames of reference. This in turn led to the principle of equivalence. By dealing with accelerating frames of reference, general relativity provides astronomers with the best theory to predict the effects of gravity. This book examines in detail new and important work in this field.

Quark-gluon Plasma, Heavy Ion Collisions And Hadrons

Quark-gluon Plasma, Heavy Ion Collisions And Hadrons PDF Author: Edward V Shuryak
Publisher: World Scientific
ISBN: 9811282366
Category : Science
Languages : en
Pages : 633

Book Description
This third book on Quark-Gluon plasma and heavy ion collisions follows the previous ones, published in 1988 and 2005, that described theoretical proposals for a large program, and then the QGP discovery at RHIC.The present one describes the rather mature field, with extensive program at RHIC and LHC colliders and corresponding theory. QGP turns out to be a strongly coupled medium made up of quarks and gluons, existing in exploding fireballs. It is the hottest form of matter created in a laboratory. Other subjects discussed in the book are QCD vacuum structure, including topological solitons and nonperturbative phenomena. It also includes some recent progress in theory of hadrons, bridging hadronic spectroscopy with partonic observables.

Classical And Quantum Dynamics Of Constrained Hamiltonian Systems

Classical And Quantum Dynamics Of Constrained Hamiltonian Systems PDF Author: Heinz J Rothe
Publisher: World Scientific
ISBN: 9814465313
Category : Science
Languages : en
Pages : 317

Book Description
This book is an introduction to the field of constrained Hamiltonian systems and their quantization, a topic which is of central interest to theoretical physicists who wish to obtain a deeper understanding of the quantization of gauge theories, such as describing the fundamental interactions in nature. Beginning with the early work of Dirac, the book covers the main developments in the field up to more recent topics, such as the field-antifield formalism of Batalin and Vilkovisky, including a short discussion of how gauge anomalies may be incorporated into this formalism. All topics are well illustrated with examples emphasizing points of central interest. The book should enable graduate students to follow the literature on this subject without much problems, and to perform research in this field.

Foundations of Quantum Chromodynamics

Foundations of Quantum Chromodynamics PDF Author: Taiz? Muta
Publisher: World Scientific
ISBN: 9812793534
Category : Science
Languages : en
Pages : 431

Book Description
This volume develops the techniques of perturbative QCD in great pedagogical detail starting with field theory. Aside from extensive treatments of the renormalization group technique, The operator product expansion formalism and their applications to short-distance reactions, this book provides a comprehensive introduction to gauge theories. Examples and exercises are provided to amplify the discussions on important topics. This is an ideal textbook on the subject of quantum chromodynamics and is essential for researchers and graduate students in high energy physics, nuclear physics and mathematical physics.

Noise Sustained Patterns

Noise Sustained Patterns PDF Author: Markus Loecher
Publisher: World Scientific
ISBN: 9810246765
Category : Technology & Engineering
Languages : en
Pages : 253

Book Description
This book investigates the impact of noise upon the emergence and sustenance of patterns. ?Patterns? loosely refers to coherent spatial structures, including fronts, as well as temporal patterns. The crucial role of nonlinearities is highlighted and expanded upon in the context of dynamical system frameworks. The author's familiarity with chaos theory, statistical physics and nonlinear science is reflected in the highly interdisciplinary character of the text. Model equations and experiments taken from fluid dynamics, semiconductor devices, biophysics and statistical mechanics complement theoretical concepts.It should be of great value to researchers and graduate students who desire a quick introduction to the subject. Excursions into emerging fields such as traffic flow simulations and game theory serve to broaden the scope and to encourage the exploration of sundry topics.