Quantum Cosmology And Baby Universes: Proceedings Of 7th Jerusalem Winter School

Quantum Cosmology And Baby Universes: Proceedings Of 7th Jerusalem Winter School PDF Author: Sydney Coleman
Publisher: World Scientific
ISBN: 9814602590
Category :
Languages : en
Pages : 367

Get Book Here

Book Description
The subject of Quantum Cosmology is concerned with providing a quantum mechanical description of the universe as a whole and, within that description, to constructing a theory of the universe's initial condition whose predictions can be compared with observation. The recent progress in this area has profound implications for physics at all scales. The lectures at this School describe these theories and their implications. They cover basic quantum mechanics of cosmology, proposals for theories of initial conditions, and their application to the prediction of the large scale features of our universe. A special emphasis of the School is the implication of topological fluctuations of spacetime (wormholes, baby universes) for the observed coupling constants of the low energy interactions of elementary particles and as a potential explanation for the vanishing of the cosmological constant.

Quantum Cosmology And Baby Universes: Proceedings Of 7th Jerusalem Winter School

Quantum Cosmology And Baby Universes: Proceedings Of 7th Jerusalem Winter School PDF Author: Sydney Coleman
Publisher: World Scientific
ISBN: 9814602590
Category :
Languages : en
Pages : 367

Get Book Here

Book Description
The subject of Quantum Cosmology is concerned with providing a quantum mechanical description of the universe as a whole and, within that description, to constructing a theory of the universe's initial condition whose predictions can be compared with observation. The recent progress in this area has profound implications for physics at all scales. The lectures at this School describe these theories and their implications. They cover basic quantum mechanics of cosmology, proposals for theories of initial conditions, and their application to the prediction of the large scale features of our universe. A special emphasis of the School is the implication of topological fluctuations of spacetime (wormholes, baby universes) for the observed coupling constants of the low energy interactions of elementary particles and as a potential explanation for the vanishing of the cosmological constant.

Quantum Cosmology and Baby Universes

Quantum Cosmology and Baby Universes PDF Author: Sidney Coleman
Publisher:
ISBN: 9789810203450
Category :
Languages : en
Pages : 300

Get Book Here

Book Description


Quantum Cosmology and Baby Universes

Quantum Cosmology and Baby Universes PDF Author: Sidney Coleman
Publisher: World Scientific Publishing Company
ISBN: 9789810203467
Category : Cosmography
Languages : en
Pages : 353

Get Book Here

Book Description


Quantum Gravity And Cosmology - Proceedings Of The Xxii Gift International Seminar On Theoretical Physics

Quantum Gravity And Cosmology - Proceedings Of The Xxii Gift International Seminar On Theoretical Physics PDF Author: Emilio Elizalde
Publisher: World Scientific
ISBN: 9814555436
Category :
Languages : en
Pages : 210

Get Book Here

Book Description
This year's GIFT Seminar reviewed some recent developments and new perspectives on Quantum Gravity and Quantum Cosmology. The topics treated at a graduate level include an Introduction to Quantum Gravity, Path Integral Measure, Non-Perturbative Canonical Formulation (Ashtekar's variable, loop space quantization). Topics on Quantum Cosmology include the Cosmological Constant Problem, Minisuperspace Models, Wormholes and Baby Universes, and Inflationary Cosmology.

Black Holes and Baby Universes and Other Essays

Black Holes and Baby Universes and Other Essays PDF Author: Stephen Hawking
Publisher: Bantam
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 196

Get Book Here

Book Description
In thirteen essays and one extended interview Hawking discusses imaginary time, how black holes can give birth to baby universes, and scientists' efforts to find a complete unified theory that would predict everything in the universe.

Quantum Cosmology and Baby Universe

Quantum Cosmology and Baby Universe PDF Author: S. Coleman
Publisher:
ISBN:
Category :
Languages : en
Pages : 535

Get Book Here

Book Description


Euclidean Quantum Gravity

Euclidean Quantum Gravity PDF Author: G. W. Gibbons
Publisher: World Scientific
ISBN: 9789810205164
Category : Science
Languages : en
Pages : 604

Get Book Here

Book Description
The Euclidean approach to Quantum Gravity was initiated almost 15 years ago in an attempt to understand the difficulties raised by the spacetime singularities of classical general relativity which arise in the gravitational collapse of stars to form black holes and the entire universe in the Big Bang. An important motivation was to develop an approach capable of dealing with the nonlinear, non-perturbative aspects of quantum gravity due to topologically non-trivial spacetimes. There are important links with a Riemannian geometry. Since its inception the theory has been applied to a number of important physical problems including the thermodynamic properties of black holes, quantum cosmology and the problem of the cosmological constant. It is currently at the centre of a great deal of interest.This is a collection of survey lectures and reprints of some important lectures on the Euclidean approach to quantum gravity in which one expresses the Feynman path integral as a sum over Riemannian metrics. As well as papers on the basic formalism there are sections on Black Holes, Quantum Cosmology, Wormholes and Gravitational Instantons.

A Big Bang in a Little Room

A Big Bang in a Little Room PDF Author: Zeeya Merali
Publisher: Basic Books
ISBN: 0465096611
Category : Science
Languages : en
Pages : 297

Get Book Here

Book Description
An award-winning science writer takes us into the lab to answer some of life's biggest questions: How was the universe created? And could we create our own? What if you could become God, with the ability to build a whole new universe? As startling as it sounds, modern physics suggests that within the next two decades, scientists may be able to perform this seemingly divine feat-to concoct an entirely new baby universe, complete with its own physical laws, star systems, galaxies, and even intelligent life. A Big Bang in a Little Room takes the reader on a journey through the history of cosmology and unravels-particle by particle, theory by theory, and experiment by experiment-the ideas behind this provocative claim made by some of the most respected physicists alive today. Beyond simply explaining the science, A Big Bang in a Little Room also tells the story of the people who have been laboring for more than thirty years to make this seemingly impossible dream a reality. What has driven them to continue on what would seem, at first glance, to be a quixotic quest? This mind-boggling book reveals that we can nurse other worlds in the tiny confines of a lab, raising a daunting prospect: Was our universe, too, brought into existence by a daring creator?

Quantum Gravity and Cosmology

Quantum Gravity and Cosmology PDF Author: J. PĂ©rez-Mercader
Publisher: World Scientific Publishing Company Incorporated
ISBN: 9789810208516
Category : Science
Languages : en
Pages : 196

Get Book Here

Book Description


Quantum Cosmology

Quantum Cosmology PDF Author: Martin Bojowald
Publisher: Springer Science & Business Media
ISBN: 1441982752
Category : Science
Languages : en
Pages : 306

Get Book Here

Book Description
Consequences of quantum gravity on grander scales are expected to be enormous: only such a theory can show how black holes really behave and where our universe came from. Applications of loop quantum gravity to cosmology have especially by now shed much light on cosmic evolution of a universe in a fundamental, microscopic description. Modern techniques are explained in this book which demonstrate how the universe could have come from a non-singular phase before the big bang, how equations for the evolution of structure can be derived, but also what fundamental limitations remain to our knowledge of the universe before the big bang. The following topics will be covered in this book: Hamiltonian cosmology: a general basic treatment of isotropy, perturbations and their role for observations; useful in general cosmology. Effective equations: an efficient way to evaluate equations of quantum gravity, which is also useful in other areas of physics where quantum theory is involved. Loop quantization: a new formalism for the atomic picture of space-time; usually presented at a sophisticated mathematical level, but evaluated here from an intuitive physical side. The book will start with physical motivations, rather than mathematical developments which is more common in other expositions of this field. All the required mathematical methods will be presented, but will not distract the reader from seeing the underlying physics. Simple but representative models will be presented first to show the basic features, which are then used to work upwards to a general description of quantum gravity and its applications in cosmology. This will make the book accessible to a more general physics readership.