Quantum Gravity In A Laboratory

Author : Nick Huggett,Niels Linnemann,Mike D. Schneider
Publisher : Cambridge University Press
Page : 98 pages
File Size : 41,5 Mb
Release : 2023-06-30
Category : Science
ISBN : 9781009327558

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Quantum Gravity in a Laboratory? by Nick Huggett,Niels Linnemann,Mike D. Schneider Pdf

The characteristic – Planck – energy scale of quantum gravity makes experimental access to the relevant physics apparently impossible. Nevertheless, low energy experiments linking gravity and the quantum have been undertaken: the Page and Geilker quantum Cavendish experiment, and the Colella-Overhauser-Werner neutron interferometry experiment, for instance. However, neither probes states in which gravity remains in a coherent quantum superposition, unlike – it is claimed – recent proposals. In essence, if two initially unentangled subsystems interacting solely via gravity become entangled, then theorems of quantum mechanics show that gravity cannot be a classical subsystem. There are formidable challenges to such an experiment, but remarkably, tabletop technology into the gravity of very small bodies has advanced to the point that such an experiment might be feasible in the near future. This Element explains the proposal and what it aims to show, highlighting the important ways in which its interpretation is theory-laden.

Author : Hanying Guo,Zhaoming Qiu,Henry Tye
Publisher : CRC Press
Page : 458 pages
File Size : 43,7 Mb
Release : 1990
Category : Mathematics
ISBN : 2881247415

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Fields, Strings, and Quantum Gravity by Hanying Guo,Zhaoming Qiu,Henry Tye Pdf

One of the recent problems in theoretical physics is that the glamorous new string theory is just too elegant, too sublime, to associate with sloppy old reality. Some progress has been made at making string theory compatible with other theories--quantum gravity and conventional field theory--but it is unclear how to verify and examine the conjugation experimentally. The ten papers here struggle with the mechanics of applying theory to practice. From a symposium in Beijing, which was interrupted on June 4th by people down in Tiananmen Square struggling with the same problem in a different field of endeavor. Book club price, $30. Annotation copyrighted by Book News, Inc., Portland, OR

Author : C.J. Isham,R. Penrose,D.W Sciama
Publisher : Unknown
Page : 128 pages
File Size : 42,5 Mb
Release : 1975
Category : Electronic
ISBN : 0198519435

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Quantum Gravity. An Oxford Symposium. Rutherford Laboratory February 15-16, 1974 by C.J. Isham,R. Penrose,D.W Sciama Pdf

Author : Christian Pfeifer,Claus Lämmerzahl
Publisher : Springer Nature
Page : 557 pages
File Size : 50,7 Mb
Release : 2023-11-01
Category : Science
ISBN : 9783031315206

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Modified and Quantum Gravity by Christian Pfeifer,Claus Lämmerzahl Pdf

This book discusses theoretical predictions and their comparison with experiments of extended and modified classical and quantum theories of gravity. The goal is to provide a readable access and broad overview over different approaches to the topic to graduate and PhD students as well as to young researchers. The book presents both, theoretical and experimental insights and is structured in three parts. The first addresses the theoretical models beyond special and general relativity such as string theory, Poincare gauge theory and teleparallelism as well as Finsler gravity. In turn, the second part is focused on the observational effects that these models generate, accounting for tests and comparisons which can be made on all possible scales: from the universe as a whole via binary systems, stars, black holes, satellite experiments, down to laboratory experiments at micrometer and smaller scales. The last part of this book is dedicated to quantum systems and gravity, showing tests of classical gravity with quantum systems, and coupling of quantum matter and gravity.

Author : Antonino Zichichi
Publisher : World Scientific
Page : 449 pages
File Size : 44,8 Mb
Release : 2003
Category : Science
ISBN : 9789812796653

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From Quarks and Gluons to Quantum Gravity by Antonino Zichichi Pdf

In August/September 2002, a group of 78 physicists from 50 laboratories in 17 countries met in Erice, Italy, to participate in the 40th Course of the International School of Subnuclear Physics. The purpose of the School was to focus attention on the theoretical and phenomenological developments in gauge theories, as well as in all the other sectors of subnuclear physics. Experimental highights from the most relevant sources of new data were presented and discussed, including the latest news on theoretical developments in quantizing the gravitational forces. This volume constitutes the proceedings of the School. It is dedicated to the memory of Victor Frederick Weisskopf, a founder OCo together with John Stewart Bell, Patrick Maynard Stuart Blackett and Isidor Isaac Rabi OCo of the OC Ettore MajoranaOCO Centre for Scientific Culture, this School being the first of its 114 Schools now in existence. Contents: Mini-Courses on Basics: Physics of QCD Instantons (E V Shuryak); Confinement and Duality (M J Strassler); Status of Super String Theory (E Verlinde); Perturbative Quantum Gravity (G ''t Hooft); Experimental Highlights: Highlights from Gran Sasso Laboratory (A Bettini); Experimental Highlights from Super-Kamiokande (Y Totsuka); The Fermilab Experimental Physics Program (R Tschirhardt); Special Sessions for New Talents: Application of the Large- N c Limit to a Chiral Lagrangian with Resonances (O Cata); Towards the Finite Temperature Gluon Propagator in Landau Gauge YangOCoMills Theory (A Maas); Hermes Measurements of the Nucleon Spin Structure (J Wendland); and other papers. Readership: High energy, experimental and theoretical physicists."

Author : Martin Reuter,Frank Saueressig
Publisher : Cambridge University Press
Page : 357 pages
File Size : 45,7 Mb
Release : 2019-01-03
Category : Science
ISBN : 9781107107328

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Quantum Gravity and the Functional Renormalization Group by Martin Reuter,Frank Saueressig Pdf

A self-contained pedagogical introduction to asymptotic safety and the functional renormalization group in quantum gravity, for graduate students and researchers.

Author : Domenico J. W. Giulini,Claus Kiefer,Claus Lämmerzahl
Publisher : Springer Science & Business Media
Page : 426 pages
File Size : 40,5 Mb
Release : 2003-09-16
Category : Science
ISBN : 354040810X

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Quantum Gravity by Domenico J. W. Giulini,Claus Kiefer,Claus Lämmerzahl Pdf

The relation between quantum theory and the theory of gravitation remains one of the most outstanding unresolved issues of modern physics. According to general expectation, general relativity as well as quantum (field) theory in a fixed background spacetime cannot be fundamentally correct. Hence there should exist a broader theory comprising both in appropriate limits, i.e., quantum gravity. This book gives readers a comprehensive introduction accessible to interested non-experts to the main issues surrounding the search for quantum gravity. These issues relate to fundamental questions concerning the various formalisms of quantization; specific questions concerning concrete processes, like gravitational collapse or black-hole evaporation; and the all important question concerning the possibility of experimental tests of quantum-gravity effects.

Author : Dean Rickles,Steven French,Juha T. Saatsi
Publisher : Clarendon Press
Page : 288 pages
File Size : 51,8 Mb
Release : 2006-11-16
Category : Science
ISBN : 9780191515026

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The Structural Foundations of Quantum Gravity by Dean Rickles,Steven French,Juha T. Saatsi Pdf

Quantum gravity is the name given to a theory that unites general relativity - Einstein's theory of gravitation and spacetime - with quantum field theory, our framework for describing non-gravitational forces. The Structural Foundations of Quantum Gravity brings together philosophers and physicists to discuss a range of conceptual issues that surface in the effort to unite these theories, focusing in particular on the ontological nature of the spacetime that results. Although there has been a great deal written about quantum gravity from the perspective of physicists and mathematicians, very little attention has been paid to the philosophical aspects. This volume closes that gap, with essays written by some of the leading researchers in the field. Individual papers defend or attack a structuralist perspective on the fundamental ontologies of our physical theories, which offers the possibility of shedding new light on a number of foundational problems. It is a book that will be of interest not only to physicists and philosophers of physics but to anyone concerned with foundational issues and curious to explore new directions in our understanding of spacetime and quantum physics.

Author : Sabine Hossenfelder
Publisher : Springer
Page : 120 pages
File Size : 48,9 Mb
Release : 2017-11-15
Category : Science
ISBN : 9783319645377

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Experimental Search for Quantum Gravity by Sabine Hossenfelder Pdf

This book summarizes recent developments in the research area of quantum gravity phenomenology. A series of short and nontechnical essays lays out the prospects of various experimental possibilities and their current status. Finding observational evidence for the quantization of space-time was long thought impossible. In the last decade however, new experimental design and technological advances have changed the research landscape and opened new perspectives on quantum gravity. Formerly dominated by purely theoretical constructions, quantum gravity now has a lively phenomenology to offer. From high precision measurements using macroscopic quantum oscillators to new analysis methods of the cosmic microwave background, no stone is being left unturned in the experimental search for quantum gravity. This book sheds new light on the connection of astroparticle physics with the quantum gravity problem. Gravitational waves and their detection are covered. It illustrates findings from the interconnection between general relativity, black holes and Planck stars. Finally, the return on investment in quantum-gravitation research is illuminated. The book is intended for graduate students and researchers entering the field.

Author : James Lindesay
Publisher : Cambridge University Press
Page : 419 pages
File Size : 44,5 Mb
Release : 2013-05-16
Category : Science
ISBN : 9781107008403

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Foundations of Quantum Gravity by James Lindesay Pdf

Explores how quantum coherence can be consistently incorporated into Einstein's theory of gravitation, for researchers in the foundations of physics.

Author : Rodolfo Gambini,Jorge Pullin
Publisher : Oxford University Press
Page : 192 pages
File Size : 40,9 Mb
Release : 2011-09-22
Category : Science
ISBN : 9780199590759

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A First Course in Loop Quantum Gravity by Rodolfo Gambini,Jorge Pullin Pdf

Loop quantum gravity is one of the modern contenders for a unified description of quantum mechanics and gravity. Up to now no book has covered the material at the level of a college student or of other readers with some knowledge of college level physics. This book fills that gap.

Author : Carlo Rovelli
Publisher : Cambridge University Press
Page : 128 pages
File Size : 44,7 Mb
Release : 2007-11-29
Category : Science
ISBN : 9781139456159

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Quantum Gravity by Carlo Rovelli Pdf

Quantum gravity is perhaps the most important open problem in fundamental physics. It is the problem of merging quantum mechanics and general relativity, the two great conceptual revolutions in the physics of the twentieth century. The loop and spinfoam approach, presented in this 2004 book, is one of the leading research programs in the field. The first part of the book discusses the reformulation of the basis of classical and quantum Hamiltonian physics required by general relativity. The second part covers the basic technical research directions. Appendices include a detailed history of the subject of quantum gravity, hard-to-find mathematical material, and a discussion of some philosophical issues raised by the subject. This fascinating text is ideal for graduate students entering the field, as well as researchers already working in quantum gravity. It will also appeal to philosophers and other scholars interested in the nature of space and time.

Author : Tomás Ortín
Publisher : Cambridge University Press
Page : 1043 pages
File Size : 43,9 Mb
Release : 2015-03-26
Category : Science
ISBN : 9780521768139

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Gravity and Strings by Tomás Ortín Pdf

Self-contained and comprehensive, this definitive new edition provides a complete overview of the intersection of gravity, supergravity, and superstrings.

Author : Melanie Swan,Renato P Dos Santos,Mikhail A Lebedev,Frank Witte
Publisher : World Scientific
Page : 551 pages
File Size : 48,7 Mb
Release : 2022-05-30
Category : Computers
ISBN : 9781800610637

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Quantum Computing For The Brain by Melanie Swan,Renato P Dos Santos,Mikhail A Lebedev,Frank Witte Pdf

Quantum Computing for the Brain argues that the brain is the killer application for quantum computing. No other system is as complex, as multidimensional in time and space, as dynamic, as less well-understood, as of peak interest, and as in need of three-dimensional modeling as it functions in real-life, as the brain.Quantum computing has emerged as a platform suited to contemporary data processing needs, surpassing classical computing and supercomputing. This book shows how quantum computing's increased capacity to model classical data with quantum states and the ability to run more complex permutations of problems can be employed in neuroscience applications such as neural signaling and synaptic integration. State-of-the-art methods are discussed such as quantum machine learning, tensor networks, Born machines, quantum kernel learning, wavelet transforms, Rydberg atom arrays, ion traps, boson sampling, graph-theoretic models, quantum optical machine learning, neuromorphic architectures, spiking neural networks, quantum teleportation, and quantum walks.Quantum Computing for the Brain is a comprehensive one-stop resource for an improved understanding of the converging research frontiers of foundational physics, information theory, and neuroscience in the context of quantum computing.

Author : Abhay Ashtekar,Jorge Pullin
Publisher : World Scientific
Page : 320 pages
File Size : 44,9 Mb
Release : 2017-03-16
Category : Science
ISBN : 9789813220010

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Loop Quantum Gravity: The First 30 Years by Abhay Ashtekar,Jorge Pullin Pdf

'Written by young theoretical physicists who are experts in the field, this volume is meant both to provide an introduction to the field and to offer a review of the latest developments, not discussed in many other existing books, for senior researchers. It will also appeal to scientists who do not work directly on LQG but are interested in issues at the interface of general relativity and quantum physics.'CERN CourierThis volume presents a snapshot of the state-of-the-art in loop quantum gravity from the perspective of younger leading researchers. It takes the reader from the basics to recent advances, thereby bridging an important gap.The aim is two-fold — to provide a contemporary introduction to the entire field for students and post-docs, and to present an overview of the current status for more senior researchers. The contributions include the latest developments that are not discussed in existing books, particularly recent advances in quantum dynamics both in the Hamiltonian and sum over histories approaches; and applications to cosmology of the early universe and to the quantum aspects of black holes.