The Cosmological Constant
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Expansion Of The Universe
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Author : Steff Jaywan
language : en
Publisher: Dedona Publishing
Release Date :
Expansion Of The Universe written by Steff Jaywan and has been published by Dedona Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on with Science categories.
The universe is a vast and enigmatic expanse, filled with countless mysteries that have intrigued scientists and philosophers for centuries. One of the most profound discoveries of modern cosmology is that the universe is not only expanding but doing so at an accelerating rate. This revelation has reshaped our understanding of the cosmos and introduced the concept of dark energy as a dominant force driving this acceleration. In this book, we embark on a journey through the history of cosmological thought, from the early observations that hinted at an expanding universe to the groundbreaking discoveries that revealed its acceleration. We will explore the role of the cosmological constant, a term introduced by Einstein in his equations of General Relativity, which has come to be associated with dark energy. We begin with a foundational understanding of the universe's expansion, delving into the Big Bang theory and the key observations that support it. From there, we examine the pivotal role of the cosmological constant and its implications for the structure and fate of the universe. As we navigate through the complexities of dark energy and its various theoretical models, we will also address the challenges and alternative theories that scientists are exploring to explain this cosmic acceleration. Finally, we will consider the future of cosmological research, highlighting the ongoing quests to unravel the mysteries that still elude us.
Introduction To General Relativity And The Cosmological Constant Problem
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Author : Marcelo Samuel Berman
language : en
Publisher: Nova Publishers
Release Date : 2007
Introduction To General Relativity And The Cosmological Constant Problem written by Marcelo Samuel Berman and has been published by Nova Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
This book is an introductory text in General Relativity, while also focusing some solutions to the cosmological constant problem, which consists in an amazing 100 orders of magnitude discrepancy between the value of this constant in the present Universe, and its estimated value in the very early epoch. The author suggests that the constant is in fact, a time-varying function of the age of the Universe. The book offers a wealth of cosmological models, treats up to date findings, like the verification of the Lense-Thirring effect in the year 2004, and the recently published research by Cooperstock and Tieu (2005) suggesting that "dark" matter is not a necessary concept in order to explain the rotational velocities of stars around galaxies' nuclei. This is a mathematical cosmology textbook that may lead undergraduates, and graduate students to one of the frontiers of research, while keeping the prerequisites to a minimum, because most of the theory in the book requires only prior knowledge of Calculus and a University Physics course.
Dynamical Approach To The Cosmological Constant Problem
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Author : Viacheslav Emelyanov
language : en
Publisher: Sudwestdeutscher Verlag Fur Hochschulschriften AG
Release Date : 2013
Dynamical Approach To The Cosmological Constant Problem written by Viacheslav Emelyanov and has been published by Sudwestdeutscher Verlag Fur Hochschulschriften AG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Why does our universe expand with acceleration? What is dark energy? Although, no one knows, this phenomenon is well-modeled by the cosmological term in the Einstein equation. Noteworthy, quantum vacuum influences evolution of spacetime precisely as the cosmological constant does. However, theoretical estimates of the vacuum energy density indicate a catastrophe. We discuss this problem and examine a particular approach to its solution.
The Cosmological Constant Problem
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Author : Krishna Nandlal
language : en
Publisher:
Release Date : 1998
The Cosmological Constant Problem written by Krishna Nandlal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Cosmology categories.
Einstein S Greatest Blunder
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Author : Donald Goldsmith
language : en
Publisher: Harvard University Press
Release Date : 1997
Einstein S Greatest Blunder written by Donald Goldsmith and has been published by Harvard University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Biography & Autobiography categories.
This brief and witty book, by the award-winning science writer Donald Goldsmith, takes on key questions about the origin and evolution of the cosmos. By clearly laying out what we currently know about the universe as a whole, Goldsmith lets us see firsthand whether modern cosmology is in a state of crisis.
The Weight Of The Vacuum
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Author : Helge S. Kragh
language : en
Publisher: Springer
Release Date : 2014-05-21
The Weight Of The Vacuum written by Helge S. Kragh and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-21 with Science categories.
The 2011 Nobel Prize in Physics was awarded for the discovery of cosmic acceleration due to dark energy, a discovery that is all the more perplexing as nobody knows what dark energy actually is. We put the modern concept of cosmological vacuum energy into historical context and show how it grew out of disparate roots in quantum mechanics (zero-point energy) and relativity theory (the cosmological constant, Einstein's “greatest blunder”). These two influences have remained strangely aloof and still co-exist in an uneasy alliance that is at the heart of the greatest crisis in theoretical physics, the cosmological-constant problem.
Theoretical And Experimental Approaches To Dark Energy And The Cosmological Constant Problem
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Author : Ahmad Borzou
language : en
Publisher: Springer
Release Date : 2017-11-20
Theoretical And Experimental Approaches To Dark Energy And The Cosmological Constant Problem written by Ahmad Borzou and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-20 with Science categories.
This thesis represents a unique mix of theoretical work discussing the Lorentz theory of gravity and experimental work searching for supersymmetry with the Compact Muon Solenoid experiment at the Large Hadron Collider. It begins by reviewing a set of widely-discussed theoretical solutions to the cosmological constant problem, including a natural solution provided by the recently developed Lorentz gauge theory of gravity. The Schwartzschild metric, de Sitter space, and quantum versions of the theory are also discussed. The thesis then looks to supersymmetry for an alternative solution. The idea behind supersymmetry is reviewed and an experimental search for supersymmetry is presented. A major contribution was to estimate one of the most significant backgrounds in this search, which arises from top-antitop quark pair production or W boson production in association with multiple jets where the W boson decays into the hadronically-decaying tau leptons and neutrinos. This background was estimated through a novel method involving kinematically analogous events but including a well-measured muon. This search significantly extends limits on supersymmetric partners of gluons from previous searches.
Cosmological Constant And The Evolution Of The Universe
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Author : K. Sato
language : en
Publisher:
Release Date : 1996
Cosmological Constant And The Evolution Of The Universe written by K. Sato and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Astrophysics categories.
The Cosmological Constant Problem
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Author : Steven Weinberg
language : en
Publisher:
Release Date : 1989
The Cosmological Constant Problem written by Steven Weinberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Cosmology categories.
The Mystery Of The Cosmological Constant
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Author : Larry Abbott
language : en
Publisher:
Release Date : 1988
The Mystery Of The Cosmological Constant written by Larry Abbott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Cosmology categories.