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Author: Nick Huggett
Publisher: Cambridge University Press
ISBN: 1009327550
Category : Science
Languages : en
Pages : 98
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Book Description
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: Nick Huggett
Publisher: Cambridge University Press
ISBN: 1009327550
Category : Science
Languages : en
Pages : 98
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Book Description
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: Nick Huggett
Publisher: Cambridge University Press
ISBN: 110847702X
Category : Philosophy
Languages : en
Pages : 371
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Book Description
A collection of essays discussing the philosophy and foundations of quantum gravity. Written by leading philosophers and physicists in the field, chapters cover the important conceptual questions in the search for a quantum theory of gravity, and the current state of understanding among philosophers and physicists.
Author: Sabine Hossenfelder
Publisher: Springer
ISBN: 3319645374
Category : Science
Languages : en
Pages : 121
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Book Description
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: Lee Smolin
Publisher: Basic Books
ISBN: 0465013244
Category : Science
Languages : en
Pages : 251
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Book Description
"It would be hard to imagine a better guide to this difficult subject." -- Scientific American In Three Roads to Quantum Gravity, Lee Smolin provides an accessible overview of the attempts to build a final "theory of everything." He explains in simple terms what scientists are talking about when they say the world is made from exotic entities such as loops, strings, and black holes and tells the fascinating stories behind these discoveries: the rivalries, epiphanies, and intrigues he witnessed firsthand. "Provocative, original, and unsettling." -- The New York Review of Books "An excellent writer, a creative thinker." -- Nature
Author: Cécile DeWitt-Morette
Publisher:
ISBN: 9783945561294
Category :
Languages : en
Pages :
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Book Description
Author: Giovanni Modanese
Publisher: Bentham Science Publishers
ISBN: 1608053997
Category : Science
Languages : en
Pages : 334
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Book Description
"Recent developments in gravity-superconductivity interactions have been summarized by several researchers. If gravitation has to be eventually reconciled with quantum mechanics, the macroscopic quantum character of superconductors might actually matter. T"
Author: Craig Callender
Publisher: Cambridge University Press
ISBN: 9780521664455
Category : Science
Languages : en
Pages : 380
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Book Description
Was the first book to examine the exciting area of overlap between philosophy and quantum mechanics with chapters by leading experts from around the world.
Author: Bei-Lok B. Hu
Publisher: Cambridge University Press
ISBN: 0521193575
Category : Science
Languages : en
Pages : 615
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Book Description
An overview of semi-classical gravity theory and stochastic gravity as theories of quantum gravity in curved space-time.
Author: Y. T. Chen
Publisher: Cambridge University Press
ISBN: 0521391717
Category : Science
Languages : en
Pages : 284
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Book Description
An account of the experiments used to explore the nature of universal gravitation that can be performed in a laboratory.
Author: Edwin F. Taylor
Publisher:
ISBN: 9780321512864
Category : Black holes (Astronomy)
Languages : en
Pages : 0
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Book Description
