Download or read book LQG for the Bewildered written by Deepak Vaid and published by Springer. This book was released on 2016-10-07 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This primer offers a concise introduction to Loop Quantum Gravity (LQG) - a theoretical framework for uniting Quantum Mechanics (QM) with General Relativity (GR). The emphasis is on the physical aspects of the framework and its historical development in terms of self-dual variables, still most suited for a first, pedagogical encounter with LQG. The text starts by reviewing GR and the very basics of Quantum Field Theory (QFT), and then explains in a concise and clear manner the steps leading from the Einstein-Hilbert action for gravity to the construction of the quantum states of geometry, known as spin-networks, and which provide the basis for the kinematical Hilbert space of quantum general relativity. Along the way the various associated concepts of tetrads, spin-connection and holonomies are introduced. Having thus provided a minimal introduction to the LQG framework, some applications to the problems of black hole entropy and of quantum cosmology are briefly surveyed. Last but not least, a list of the most common criticisms of LQG is presented, which are then tackled one by one in order to convince the reader of the physical viability of the theory. A set of appendices provides accessible introductions to several key notions such as the Peter-Weyl theorem, duality of differential forms and Regge calculus, among others. The presentation is aimed at graduate students and researchers who have some familiarity with the tools of QM and GR, but are intimidated by the technicalities required to browse through the existing LQG literature. This primer aims at making the formalism appear a little less bewildering to the uninitiated and helps lower the barrier for entry into the field.
Download or read book Loop Quantum Gravity for the Bewildered written by Sundance Bilson-Thompson and published by Springer Nature. This book was released on with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beyond Peaceful Coexistence The Emergence Of Space Time And Quantum written by Ignazio Licata and published by World Scientific. This book was released on 2016-03-30 with total page 741 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'It may be that a real synthesis of quantum and relativity theories requires not just technical developments but radical conceptual renewal.'J S BellBeyond Peaceful Coexistence: The Emergence of Space, Time and Quantum brings together leading academics in mathematics and physics to address going beyond the 'peaceful coexistence' of space-time descriptions (local and continuous ones) and quantum events (discrete and non-commutative ones). Formidable challenges waiting beyond the Standard Model require a new semantic consistency within the theories in order to build new ways of understanding, working and relating to them. The original A. Shimony meaning of the peaceful coexistence (the collapse postulate and non-locality) appear to be just the tip of the iceberg in relation to more serious fundamental issues across physics as a whole.Chapters in this book present perspectives on emergent, discrete, geometrodynamic and topological approaches, as well as a new interpretative spectrum of quantum theories after Copenhagen, discrete time theories, time-less approaches and 'super-fluid' pictures of space-time.As well as stimulating further research among established theoretical physicists, the book can also be used in courses on the philosophy and mathematics of theoretical physics.
Download or read book The Sultan and His Subjects written by Richard Davey and published by London : Chapman and Hall, Limited. This book was released on 1897 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Covariant Loop Quantum Gravity written by Carlo Rovelli and published by Cambridge University Press. This book was released on 2015 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensible introduction to the most fascinating research in theoretical physics: advanced quantum gravity. Ideal for researchers and graduate students.
Download or read book The Universe of Fluctuations written by B. G. Sidharth and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book SQL Server 2000 Stored Procedures Handbook written by Robin Dewson and published by Apress. This book was released on 2003-09-24 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: * Shows you how to write more effective stored procedures and functions * Concise, detailed advice from SQL Server experts * Tackles issues barely covered in existing books, such as optimizing and debugging, concurrency and transactions.
Download or read book The Craft of Probabilistic Modelling written by J. Gani and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together the personal accounts and reflections of nineteen mathematical model-builders, whose specialty is probabilistic modelling. The reader may well wonder why, apart from personal interest, one should commission and edit such a collection of articles. There are, of course, many reasons, but perhaps the three most relevant are: (i) a philosophicaJ interest in conceptual models; this is an interest shared by everyone who has ever puzzled over the relationship between thought and reality; (ii) a conviction, not unsupported by empirical evidence, that probabilistic modelling has an important contribution to make to scientific research; and finally (iii) a curiosity, historical in its nature, about the complex interplay between personal events and the development of a field of mathematical research, namely applied probability. Let me discuss each of these in turn. Philosophical Abstraction, the formation of concepts, and the construction of conceptual models present us with complex philosophical problems which date back to Democritus, Plato and Aristotle. We have all, at one time or another, wondered just how we think; are our thoughts, concepts and models of reality approxim&tions to the truth, or are they simply functional constructs helping us to master our environment? Nowhere are these problems more apparent than in mathematical model ling, where idealized concepts and constructions replace the imperfect realities for which they stand.
Download or read book Control Engineering written by László Keviczky and published by Springer. This book was released on 2018-10-04 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers fundamental information on the analysis and synthesis of continuous and sampled data control systems. It includes all the required preliminary materials (from mathematics, signals and systems) that are needed in order to understand control theory, so readers do not have to turn to other textbooks. Sampled data systems have recently gained increasing importance, as they provide the basis for the analysis and design of computer-controlled systems. Though the book mainly focuses on linear systems, input/output approaches and state space descriptions are also provided. Control structures such as feedback, feed forward, internal model control, state feedback control, and the Youla parameterization approach are discussed, while a closing section outlines advanced areas of control theory. Though the book also contains selected examples, a related exercise book provides Matlab/Simulink exercises for all topics discussed in the textbook, helping readers to understand the theory and apply it in order to solve control problems. Thanks to this combination, readers will gain a basic grasp of systems and control, and be able to analyze and design continuous and discrete control systems.
Download or read book A Dictionary of the Classical New r written by Hans Jørgensen and published by Asian Educational Services. This book was released on 1995 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Classical Nepali Language Dictionary
Download or read book Finding One s Own Way in Design written by Krista Kosonen and published by . This book was released on 2019-04 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The question of how to find one?s own way touches the life of each of us. This question is closely linked to our identity, especially when something changes in our lives and questions our prevailing view of ourselves.0Finding one?s own way illustrates how designers have sought to navigate their life in design. The study builds on individual stories that are viewed through narrative identity research -- design entrepreneurs? and design students? visual and spoken narratives and creative process reports, recounting some of the most significant experiences that have influenced their life paths. These stories show how one?s ?own way? is shaped by different beliefs, obstacles and successes, turning points and creative crises.0The research provides novel insights for designers, design students, researchers and educators -- indeed anyone who is eager to dive into identity reflection and gain a better understanding of how to both find and create one?s own way in design.
Download or read book The History of the State of Georgia from 1850 to 1881 written by Isaac Wheeler Avery and published by . This book was released on 1881 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Firm Word Or Two written by Nathaniel Benchley and published by . This book was released on 1965 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growing years of a father and his son who share the same world but can never quite talk about it.
Download or read book The Map and the Territory written by Shyam Wuppuluri and published by Springer. This book was released on 2018-02-13 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents essays by pioneering thinkers including Tyler Burge, Gregory Chaitin, Daniel Dennett, Barry Mazur, Nicholas Humphrey, John Searle and Ian Stewart. Together they illuminate the Map/Territory Distinction that underlies at the foundation of the scientific method, thought and the very reality itself. It is imperative to distinguish Map from the Territory while analyzing any subject but we often mistake map for the territory. Meaning for the Reference. Computational tool for what it computes. Representations are handy and tempting that we often end up committing the category error of over-marrying the representation with what is represented, so much so that the distinction between the former and the latter is lost. This error that has its roots in the pedagogy often generates a plethora of paradoxes/confusions which hinder the proper understanding of the subject. What are wave functions? Fields? Forces? Numbers? Sets? Classes? Operators? Functions? Alphabets and Sentences? Are they a part of our map (theory/representation)? Or do they actually belong to the territory (Reality)? Researcher, like a cartographer, clothes (or creates?) the reality by stitching multitudes of maps that simultaneously co-exist. A simple apple, for example, can be analyzed from several viewpoints beginning with evolution and biology, all the way down its microscopic quantum mechanical components. Is there a reality (or a real apple) out there apart from these maps? How do these various maps interact/intermingle with each other to produce a coherent reality that we interact with? Or do they not? Does our brain uses its own internal maps to facilitate “physicist/mathematician” in us to construct the maps about the external territories in turn? If so, what is the nature of these internal maps? Are there meta-maps? Evolution definitely fences our perception and thereby our ability to construct maps, revealing to us only those aspects beneficial for our survival. But the question is, to what extent? Is there a way out of the metaphorical Platonic cave erected around us by the nature? While “Map is not the territory” as Alfred Korzybski remarked, join us in this journey to know more, while we inquire on the nature and the reality of the maps which try to map the reality out there. The book also includes a foreword by Sir Roger Penrose and an afterword by Dagfinn Follesdal.
Download or read book Anton Pannekoek and the Socialism of Workers Self Emancipation 1873 1960 written by John P. Gerber and published by Springer Science & Business Media. This book was released on 1989 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mind of an Engineer Volume 2 written by Purnendu Ghosh and published by Springer Nature. This book was released on 2019-11-18 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of chapters reflecting the experiences and achievements of some of the Fellows of the Indian National Academy of Engineering (INAE). The book comprises essays that look at reminiscences, eureka moments, inspirations, challenges and opportunities in the journey of an engineering professional. The chapters look at the paths successful engineering professionals take towards self-realisation, the milestones they crossed, and the goals they reached. The book contains 38 chapters on diverse topics that truly reflect the way the meaningful mind of an engineer works.
Download or read book Linear Systems written by Alok Sinha and published by CRC Press. This book was released on 2007-01-31 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Balancing rigorous theory with practical applications, Linear Systems: Optimal and Robust Control explains the concepts behind linear systems, optimal control, and robust control and illustrates these concepts with concrete examples and problems. Developed as a two-course book, this self-contained text first discusses linear systems, incl
