The Universe of Fluctuations
The Universe of Fluctuations

Author: Burra Sidharth

Publisher: Springer Science & Business Media

Published: 2005-08-29

Total Pages: 212

ISBN-13: 9781402037856

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The Universe of Fluctuations: The Architecture of Spacetime and the Universe is a path-breaking work which proposes solutions to the impasse and crisis facing fundamental physics and cosmology. It describes a cosmological model based on fuzzy spacetime that has correctly predicted a dark-energy-driven acceleration of our expanding universe - with a small cosmological constant - at a time when the popular belief was quite the contrary. It describes how the Universe is made up of an underpinning of Planck oscillators in a Quantum Vacuum. This leads to, amongst other things, a characterization of gravitation as being distributional over the entire Universe, thereby providing an answer to a puzzle brought to light by Weinberg years ago and since overlooked. There is also a simple formula for the mass spectrum of all known elementary particles, based on QCD dynamics. Many other interesting ramifications and experimental tests for the future are also discussed. This apart, there is a brief survey of some of the existing theories. The book is accessible to junior and senior researchers in High Energy Physics and Cosmology as well as the serious graduate student in Physics.

The Universe of Fluctuations
The Universe of Fluctuations

Author: B. G. Sidharth

Publisher: Springer Science & Business Media

Published: 2006-03-30

Total Pages: 193

ISBN-13: 1402037864

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The Universe of Fluctuations: The Architecture of Spacetime and the Universe is a path-breaking work which proposes solutions to the impasse and crisis facing fundamental physics and cosmology. It describes a cosmological model based on fuzzy spacetime that has correctly predicted a dark-energy-driven acceleration of our expanding universe - with a small cosmological constant - at a time when the popular belief was quite the contrary. It describes how the Universe is made up of an underpinning of Planck oscillators in a Quantum Vacuum. This leads to, amongst other things, a characterization of gravitation as being distributional over the entire Universe, thereby providing an answer to a puzzle brought to light by Weinberg years ago and since overlooked. There is also a simple formula for the mass spectrum of all known elementary particles, based on QCD dynamics. Many other interesting ramifications and experimental tests for the future are also discussed. This apart, there is a brief survey of some of the existing theories. The book is accessible to junior and senior researchers in High Energy Physics and Cosmology as well as the serious graduate student in Physics.

A Universe from Nothing
A Universe from Nothing

Author: Lawrence Maxwell Krauss

Publisher: Simon and Schuster

Published: 2013

Total Pages: 226

ISBN-13: 145162445X

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This is a provocative account of the astounding new answers to the most basic philosophical question: Where did the universe come from and how will it end?

The Thermodynamic Universe
The Thermodynamic Universe

Author: Burra Gautam Sidharth

Publisher: World Scientific

Published: 2008

Total Pages: 303

ISBN-13: 9812812342

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Particle Physics and High Energy Physics have stagnated since the early 1970s. Now, the underlying principle of reductionism ? so sacred to twentieth-century physics ? is itself being questioned. This book examines these tumultuous developments that are leading to a paradigm shift and a new horizon for Physics.Presenting the new paradigm in fuzzy spacetime, this book is based on some 100 papers published in peer-reviewed journals including Foundations of Physics, Nuovo Cimento and The International Journal of Modern Physics (A&E), as well as two recently published books, The Chaotic Universe (Nova Science, New York) and The Universe of Fluctuations (Springer). The work had predicted correctly in advance epoch-turning observations, for example, that the Universe is accelerating with a small cosmological constant driven by dark energy when the prevalent line of thinking was the exact opposite. Similarly, the prediction of a minimum thermodynamic residual energy in the Universe has also been realized more recently. Further to a unified description of gravitation and electromagnetism via fluctuations, several other features are presented in complete agreement with experiments, in sharp contrast to the present ideas which are neither verifiable nor disprovable.

Physical Foundations of Cosmology
Physical Foundations of Cosmology

Author: Viatcheslav Mukhanov

Publisher: Cambridge University Press

Published: 2005-11-10

Total Pages: 454

ISBN-13: 1139447114

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Inflationary cosmology has been developed over the last twenty years to remedy serious shortcomings in the standard hot big bang model of the universe. This textbook, first published in 2005, explains the basis of modern cosmology and shows where the theoretical results come from. The book is divided into two parts; the first deals with the homogeneous and isotropic model of the Universe, the second part discusses how inhomogeneities can explain its structure. Established material such as the inflation and quantum cosmological perturbation are presented in great detail, however the reader is brought to the frontiers of current cosmological research by the discussion of more speculative ideas. An ideal textbook for both advanced students of physics and astrophysics, all of the necessary background material is included in every chapter and no prior knowledge of general relativity and quantum field theory is assumed.

Connecting Quarks with the Cosmos
Connecting Quarks with the Cosmos

Author: National Research Council

Publisher: National Academies Press

Published: 2003-03-12

Total Pages: 222

ISBN-13: 030917113X

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Advances made by physicists in understanding matter, space, and time and by astronomers in understanding the universe as a whole have closely intertwined the question being asked about the universe at its two extremesâ€"the very large and the very small. This report identifies 11 key questions that have a good chance to be answered in the next decade. It urges that a new research strategy be created that brings to bear the techniques of both astronomy and sub-atomic physics in a cross-disciplinary way to address these questions. The report presents seven recommendations to facilitate the necessary research and development coordination. These recommendations identify key priorities for future scientific projects critical for realizing these scientific opportunities.

The Little Book of Cosmology
The Little Book of Cosmology

Author: Lyman Page

Publisher: Princeton University Press

Published: 2020-04-07

Total Pages: 138

ISBN-13: 0691201692

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The cutting-edge science that is taking the measure of the universe The Little Book of Cosmology provides a breathtaking look at our universe on the grandest scales imaginable. Written by one of the world's leading experimental cosmologists, this short but deeply insightful book describes what scientists are revealing through precise measurements of the faint thermal afterglow of the Big Bang—known as the cosmic microwave background, or CMB—and how their findings are transforming our view of the cosmos. Blending the latest findings in cosmology with essential concepts from physics, Lyman Page first helps readers to grasp the sheer enormity of the universe, explaining how to understand the history of its formation and evolution in space and time. Then he sheds light on how spatial variations in the CMB formed, how they reveal the age, size, and geometry of the universe, and how they offer a blueprint for the formation of cosmic structure. Not only does Page explain current observations and measurements, he describes how they can be woven together into a unified picture to form the Standard Model of Cosmology. Yet much remains unknown, and this incisive book also describes the search for ever deeper knowledge at the field's frontiers—from quests to understand the nature of neutrinos and dark energy to investigations into the physics of the very early universe.

Cycles of Time
Cycles of Time

Author: Roger Penrose

Publisher: Vintage

Published: 2011-09-06

Total Pages: 307

ISBN-13: 0307596745

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From Nobel prize-winner Roger Penrose, this groundbreaking book is for anyone "who is interested in the world, how it works, and how it got here" (New York Journal of Books). Penrose presents a new perspective on three of cosmology’s essential questions: What came before the Big Bang? What is the source of order in our universe? And what cosmic future awaits us? He shows how the expected fate of our ever-accelerating and expanding universe—heat death or ultimate entropy—can actually be reinterpreted as the conditions that will begin a new “Big Bang.” He details the basic principles beneath our universe, explaining various standard and non-standard cosmological models, the fundamental role of the cosmic microwave background, the paramount significance of black holes, and other basic building blocks of contemporary physics. Intellectually thrilling and widely accessible, Cycles of Time is a welcome new contribution to our understanding of the universe from one of our greatest mathematicians and thinkers.

Quantum Fluctuations Of Spacetime
Quantum Fluctuations Of Spacetime

Author: Lawrence Barr Crowell

Publisher: World Scientific

Published: 2005-12-16

Total Pages: 386

ISBN-13: 981447925X

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Three key aspects of quantum gravity are considered in this book: phenomenology, potential experimental aspects and foundational theory. The phenomenology is the treatment of metric quantum fluctuations as torsional curves that deviate from classical expectations. This leads to possible experimental configurations that may detect such fluctuations. Most of these proposed experiments are quantum optical measurements of subtle quantum gravity effects in the interaction of photons and atoms. The foundational discussions attempt to find an substratum to string theories, which are motivated by the phenomenological treatment. Quantum gravity is not the quantization of general relativity, but is instead the embedding of quantum theory and gravitation into a more fundamental field theoretic framework.

Fundamentals of Galaxy Dynamics, Formation and Evolution
Fundamentals of Galaxy Dynamics, Formation and Evolution

Author: Ignacio Ferreras

Publisher: UCL Press

Published: 2019-04-02

Total Pages: 200

ISBN-13: 1911307614

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Galaxies, along with their underlying dark matter halos, constitute the building blocks of structure in the Universe. Of all fundamental forces, gravity is the dominant one that drives the evolution of structures from small density seeds at early times to the galaxies we see today. The interactions among myriads of stars, or dark matter particles, in a gravitating structure produce a system with fascinating connotations to thermodynamics, with some analogies and some fundamental differences. Ignacio Ferreras presents a concise introduction to extragalactic astrophysics, with emphasis on stellar dynamics, and the growth of density fluctuations in an expanding Universe. Additional chapters are devoted to smaller systems (stellar clusters) and larger ones (galaxy clusters). Fundamentals of Galaxy Dynamics, Formation and Evolution is written for advanced undergraduates and beginning postgraduate students, providing a useful tool to get up to speed in a starting research career. Some of the derivations for the most important results are presented in detail to enable students appreciate the beauty of maths as a tool to understand the workings of galaxies. Each chapter includes a set of problems to help the student advance with the material.