Spin In Gravity Is It Possible To Give An Experimental Basis To Torsion
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Spin In Gravity Is It Possible To Give An Experimental Basis To Torsion
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Author : Venzo De Sabbata
language : en
Publisher: World Scientific
Release Date : 1998-07-08
Spin In Gravity Is It Possible To Give An Experimental Basis To Torsion written by Venzo De Sabbata and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-07-08 with categories.
The introduction of spin is believed to be a necessary tool if one wishes to quantize general relativity. Then the main problem is to see if the introduction of spin generalizing the general relativity from a geometric point of view, i.e. through the concept of torsion, can be experimentally verified.The reader can find in this book both theoretical and experimental arguments which show the necessity for the introduction of spin, and then of torsion, in gravity. In fact, torsion constitutes the more natural and simple way to introduce spin in general relativity. For that reason it is of fundamental importance to see if there are some experiences that indicate — if not directly, then at least indirectly — the presence of torsion. This book presents a discussion on experiments with a polarized-mass torsion pendulum, the search for galactic dark matter interacting with a spin pendulum, a description of a space-based method for determination of the gravitational constant and space-based measurements of spin in gravity, as well as a discussion on theoretical arguments, for instance the nature of torsion and nonmetricity, the viability of gravitational theories with spin-torsion and spin-spin interaction, many-dimensional gravitational theories with torsion, spinors on curved spaces, the spinors in real space-time, etc.We know that until now there has been no evidence for torsion, but this fact cannot prevent us from considering in some detail this implement of research that seems to be important from both a geometrical and a physical point of view.
The Gravitational Constant Generalized Gravitational Theories And Experiments
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Author : V. de Sabbata
language : en
Publisher: Springer Science & Business Media
Release Date : 2004-03-31
The Gravitational Constant Generalized Gravitational Theories And Experiments written by V. de Sabbata and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-03-31 with Science categories.
An up-to-date description of progress and current problems with the gravitational constant, both in terms of generalized gravitational theories and experiments either in the laboratory, using Casimir force measurements, or in space at solar system distances and in cosmological observations. Contributions cover different aspects of the state and prediction of unified theories of the physical interactions including gravitation as a cardinal link, the role of experimental gravitation and observational cosmology in discriminating between them, the problem of the precise measurement and stability of fundamental physical constants in space and time, and the gravitational constant in particular. Recent advances discussed include unified and scalar-tensor theories, theories in diverse dimensions and their observational windows, gravitational experiments in space, rotational and torsional effects in gravity, basic problems in cosmology, early universe as an arena for testing unified models, and big bang nucleosynthesis.
General Physics Relativity Astronomy And Mathematical Physics And Methods
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Author :
language : en
Publisher:
Release Date : 1999
General Physics Relativity Astronomy And Mathematical Physics And Methods written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Nuclear physics categories.
Superconducting Materials For High Energy Colliders
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Author : Luisa Cifarelli
language : en
Publisher: World Scientific
Release Date : 2001
Superconducting Materials For High Energy Colliders written by Luisa Cifarelli and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Science categories.
The ELOISATRON (ELN) Project aims at a future proton supercollider with 100-500 TeV energy per beam and 1034-1036 cm-2s-1 luminosity. While the Large Hadron Collider (LHC) is being implemented at CERN, it is very timely to study the feasibility of the next generation of hadron colliders at the extreme limits of energy and luminosity. In this respect, the achievement of extremely high magnetic fields and the production of accelerating rf cavities with very low losses are a crucial point in the actual construction design of such a collider. The search for superconducting materials with suitable properties to be used in this field has gained a new impulse after the discovery of the so-called high temperature superconducting compounds (HTSCs) with superconducting critical temperatures higher than 100 K. Besides the critical temperatures, the transport performances of this class of compounds are still very far from allowing applications in extremely high energy colliders. On the other hand, in the last few years, the technological and scientific improvements obtained for both the HTSCs and the conventional superconducting materials are very promising.This book reviews the recent status of R&D on the rising generation of superconducting materials for accelerator magnets and cavities, and discusses novel aspects and ideas in this domain.
Classical And Quantum Nonlocality Proceedings Of The 16th Course Of The International School Of Cosmology And Gravitation
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Author : P G Bergmann
language : en
Publisher: World Scientific
Release Date : 2000-08-21
Classical And Quantum Nonlocality Proceedings Of The 16th Course Of The International School Of Cosmology And Gravitation written by P G Bergmann and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-08-21 with Science categories.
This book provides an up-to-date understanding of the progress and current problems of the interplay of nonlocality in the classical theories of gravitation and quantum theory. These problems lie on the border between general relativity and quantum physics, including quantum gravity.
Deep Inelastic Scattering Dis 2001 Procs Of The 9th Intl Workshop
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Author : Graziano Bruni
language : en
Publisher: World Scientific
Release Date : 2002-10-18
Deep Inelastic Scattering Dis 2001 Procs Of The 9th Intl Workshop written by Graziano Bruni and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-10-18 with Science categories.
The proceedings of DIS 2001 present the most updated status of deep inelastic scattering (DIS) physics. Topics like structure function measurements and phenomenology, QCD studies in DIS and photoproduction, spin physics and diffractive interactions are reviewed in detail, with emphasis on those studies that push the test of QCD and the Standard Model to the limits of their present range of validity, towards both the very high and the very low four-momentum transfers in the lepton-proton scattering. Moreover, this workshop coincided with the transition between the first period of experimentation at the HERA ep collider at DESY and the start of the updated HERA II operation — allowing a review of what has been learned up to now and a discussion on the main future directions of research in this field.
Geometric Algebra And Applications To Physics
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Author : Venzo de Sabbata
language : en
Publisher: CRC Press
Release Date : 2006-12-07
Geometric Algebra And Applications To Physics written by Venzo de Sabbata and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-07 with Mathematics categories.
Bringing geometric algebra to the mainstream of physics pedagogy, Geometric Algebra and Applications to Physics not only presents geometric algebra as a discipline within mathematical physics, but the book also shows how geometric algebra can be applied to numerous fundamental problems in physics, especially in experimental situations. This
Classical And Quantum Nonlocality
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Author : Peter G. Bergmann
language : en
Publisher: World Scientific
Release Date : 2000
Classical And Quantum Nonlocality written by Peter G. Bergmann and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Science categories.
This book provides an up-to-date understanding of the progress and current problems of the interplay of nonlocality in the classical theories of gravitation and quantum theory. These problems lie on the border between general relativity and quantum physics, including quantum gravity.
Advances In The Interplay Between Quantum And Gravity Physics
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Author : Peter G. Bergmann
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Advances In The Interplay Between Quantum And Gravity Physics written by Peter G. Bergmann and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
In this XVII Course of the International School of Cosmology and Gravitation devoted to "ADVANCES IN THE INTERPLAY BETWEEN QUANTUM AND GRAVITY PHYSICS" we have considered different aspects of the influence of gravity on quantum systems. In order to achieve this aim, in many lectures, seminars and discussions we have strengthened the interplay between gravity and quantum systems starting from the situation in the early universe based on astrophysical observations, up to the earthly based experiments with atom interferometry for probing the structure of space-time. Thus we have had timely lectures on the quantum field and horizon of a black hole including reviews of the problem of black holes thermodynamics and entropy, quantum information, quantum black holes, quantum evaporation and Hawking radiation, recent advances in stockastic gravity. We have also discussed quantum fluctuations in inflationary universe, quantum effects and reheating after inflation, and superplanckian energies in Hawking radiation. In this regard the subject of spinors in purely affine space-time and Dirac matter according to Weyl in the generalized theory of gravitation were developed . The dualism between space-time and matter has been deeply analyzed in order to see why, for general relativity, this is an obstacle for quantization of the theory. Also canonical Gravity and Mach's principle, torsion and curvature as commutator for Quantum Gravity and Dirac Geometry of real space-time were analysed, together with the problem of 5-Dimensional Projective Unified Field theory and Multidimensional Gravity and Cosmology.
Spin In Gravity
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Author : P. G. Bergmann
language : en
Publisher:
Release Date : 1998
Spin In Gravity written by P. G. Bergmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.