Vacuum Structure In Intense Fields

Author : H.M. Fried
Publisher : Springer
ISBN 13 : 9781475704426
Total Pages : 452 pages
Book Rating : 4.29/5 ( download)

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Download or read book Vacuum Structure in Intense Fields written by H.M. Fried and published by Springer. This book was released on 2012-10-20 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Advanced Study Institute (ASI) brought together two distinct ·"schools of approach" to Quantum Electrodynamics (QED) in the presence of intense, external, electromagnetic fields, in an effort to lay a joint foundation for a needed theoretical explanation of the sharp e+ e- "resonances" observed in the scattering of very heavy IOns. These (GSI/Darmstadt) experiments, whose history, latest reconfirmations, and most recent data were presented in three opening sessions (Bokemeyer, Koenig), show a smooth background of positron (e+) production, as a function of e+ kinetic energy. Superimposed upon this background are four very sharp peaks, of narrow widths (~ 30 KeV) and of clear experimental significance ('" 5 standard deviations). Most ofthese peaks correspond to sharp, essentially back-to-back electron-positron emission in the ions' center of mass. Following the approach of "supercritical" potential theory (SPT), where the total ionic charge unit Z satisfies Z > 137, it has been possible to provide a detailed and apparently correct understanding of the smooth e+ e- background; a coherent description of different facets of this approach, emphasizing the nature of the charged, supercritical vacuum, was described by the authors responsible for the invention of SPT (Greiner, Muller, Rafelski). In addition, predictions for related phenomena were outlined by other lecturers using the SPT approach (Bawin, Soff, SsJrensen).

Author : H.M. Fried
Publisher : Springer Science & Business Media
ISBN 13 : 1475704410
Total Pages : 438 pages
Book Rating : 4.19/5 ( download)

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Download or read book Vacuum Structure in Intense Fields written by H.M. Fried and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Advanced Study Institute (ASI) brought together two distinct ·"schools of approach" to Quantum Electrodynamics (QED) in the presence of intense, external, electromagnetic fields, in an effort to lay a joint foundation for a needed theoretical explanation of the sharp e+ e- "resonances" observed in the scattering of very heavy IOns. These (GSI/Darmstadt) experiments, whose history, latest reconfirmations, and most recent data were presented in three opening sessions (Bokemeyer, Koenig), show a smooth background of positron (e+) production, as a function of e+ kinetic energy. Superimposed upon this background are four very sharp peaks, of narrow widths (~ 30 KeV) and of clear experimental significance ('" 5 standard deviations). Most ofthese peaks correspond to sharp, essentially back-to-back electron-positron emission in the ions' center of mass. Following the approach of "supercritical" potential theory (SPT), where the total ionic charge unit Z satisfies Z > 137, it has been possible to provide a detailed and apparently correct understanding of the smooth e+ e- background; a coherent description of different facets of this approach, emphasizing the nature of the charged, supercritical vacuum, was described by the authors responsible for the invention of SPT (Greiner, Muller, Rafelski). In addition, predictions for related phenomena were outlined by other lecturers using the SPT approach (Bawin, Soff, SsJrensen).

Author : Jean Letessier
Publisher : Springer Science & Business Media
ISBN 13 : 1461519454
Total Pages : 569 pages
Book Rating : 4.54/5 ( download)

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Download or read book Hot Hadronic Matter written by Jean Letessier and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past decade has seen the development of the operational understanding of fun damental interactions within the standard model. This has detoured our attention from the great enigmas posed by the dynamics and collective behavior of strongly interacting particles. Discovered more than 30 years ago, the thermal nature of the hadronic particle spectra has stimulated considerable theoretical effort, which so far has failed to 'confirm' on the basis of microscopic interactions the origins of this phenomenon. However, a highly successful Statistical Bootstrap Model was developed by Rolf Hagedorn at CERN about 30 years ago, which has led us to consider the 'boiling hadronic matter' as a transient state in the trans formation of hadronic particles into their melted form which we call Quark-GIuon-Plasma (QGP). Today, we return to seek detailed understanding of the thermalization processes of hadronic matter, equipped on the theoretical side with the knowledge of the fundamental strong interaction theory, the quantum chromo-dynamics (QCD), and recognizing the im portant role of the complex QCD-vacuum structure. On the other side, we have developed new experimental tools in the form of nuclear relativistic beams, which allow to create rather extended regions in space-time of Hot Hadronic Matter. The confluence of these new and recent developments in theory and experiment led us to gather together from June 27 to July 1, 1994, at the Grand Hotel in Divonne-Ies-Bains, France, to discuss and expose the open questions and issues in our field.

Author : Istvan Montvay
Publisher : Cambridge University Press
ISBN 13 : 9780521599177
Total Pages : 512 pages
Book Rating : 4.72/5 ( download)

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Download or read book Quantum Fields on a Lattice written by Istvan Montvay and published by Cambridge University Press. This book was released on 1994 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a comprehensive and coherent account of the theory of quantum fields on a lattice.

Author :
Publisher :
ISBN 13 :
Total Pages : 592 pages
Book Rating : 4.76/5 ( download)

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Download or read book Energy Research Abstracts written by and published by . This book was released on 1991 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Johann Rafelski
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.24/5 ( download)

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Download or read book The Structured Vacuum written by Johann Rafelski and published by . This book was released on 1985 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : R. Marschall
Publisher : Springer Science & Business Media
ISBN 13 : 9400920873
Total Pages : 309 pages
Book Rating : 4.73/5 ( download)

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Download or read book Aspects of Seismic Reflection Data Processing written by R. Marschall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : W Gai
Publisher : World Scientific
ISBN 13 : 9814602116
Total Pages : 176 pages
Book Rating : 4.12/5 ( download)

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Download or read book High Gradient Accelerating Structure written by W Gai and published by World Scientific. This book was released on 2014-10-24 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume, for the symposium in honor of Junwen Wang's 70th anniversary, is dedicated to his many important achievements in the field of accelerator physics. It includes the discussions of recent advances and challenging problems in the field of high gradient accelerating structure development. Contents:Juwen Wang and High-Gradient LINACS — A Celebration at Tsinghua University (Gregory Loew)Research of RF High Gradient Physics and Its Application in Accelerator Structure Development (Juwen Wang)Advances in the Understanding of the Physical Processes of Vacuum Breakdown (Walter Wuensch)X-Band Structure Development at KEK (Toshiyasu Higo)A Compact Wakefield Measurement Facility (J G Power, et al)Simulation Code development and Its Applications (Zenghai Li)Transverse Wakefields and Means to Suppress Wakefields in High Gradient Linear Colliders (Roger M Jones)Higher Order Mode Damping Simulation and Multipacting Analysis (Liling Xiao)R&D of C-Band Accelerating Structure at SINAP (Qiang Gu, et al)Juwen and High Gradient Structure Development — From SLAC's SLC to NLC/GLC (R H Miller) Readership: Academic and professional readership. Keywords:Accelerator Physics;High Energy Physics;High Gradient;Accelerating Structures

Author : A.F.G. Wyatt
Publisher : Springer Science & Business Media
ISBN 13 : 1468459376
Total Pages : 583 pages
Book Rating : 4.71/5 ( download)

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Download or read book Excitations in Two-Dimensional and Three-Dimensional Quantum Fluids written by A.F.G. Wyatt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of quantum fluids in three dimensions has been an important area for many years as it embraces Bose-Einstein condensation, superfluidity and macroscopic quantisation. These are fundamental aspects of physics which can be studied in liquid 4He. In contrast, quantum fluids in two dimension is more recent and less developed. Nevertheless it has shown many interesting phenomena including a rich variety of phases and the Kosterlitz-Thouless transition. Intermediate between these dimensions are the restricted geometries of micro porous materials into which He may be introduced. The main quantum materials considered are 4He, 3He, D2, H2, H and electrons on the surface of 4He. The superfluid phases of 3He were excluded, e~cept for superfluid film flow, as 3He involves a separate set of problems. These proceedings arise from a lively Advanced Research Workshop on Excitations in Two-Dimensional and Three-Dimensional Quantum Fluids held in Exeter 10-15 August 1990. Fifty scientists took part and each provided a written contribution. Perhaps it is a testimony to the discussions that several papers were revised by the authors after the meeting. The order of the chapters is the same as the presentations at the workshop. This arrangement starts with 4He in three dimensions which establishes a base from which the two dimensional properties can be viewed. At the end of each section there is a report on the discussion session. These are interesting and useful chapters as they clarify points made in the papers and define the boundary of current understanding.

Author : Werner Gans
Publisher : Springer Science & Business Media
ISBN 13 : 1468459406
Total Pages : 588 pages
Book Rating : 4.01/5 ( download)

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Download or read book Large-Scale Molecular Systems written by Werner Gans and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: This NATO Advanced Study Institute centered on large-scale molecular systems: Quantum mechanics, although providing a general framework for the description of matter, is not easily applicable to many concrete systems of interest; classical statistical methods, on the other hand, allow only a partial picture of the behaviour of large systems. The aim of the ASI was to present both aspects of the subject matter and to foster interaction between the scientists working in these important areas of theoretical physics and theoretical chemistry. The quantum-mechanical part was mostly based on the operator-algebraic formulation of quantum mechanics and comprised quantum statistics of infinite systems with special em phasis on macroscopic observables, equilibrium conditions, irreversibility on the one hand, symmetry breaking for molecules in the radiation field and macroscopic quantum phenomena in the theory of superconductivity (BCS-theory) on the other hand. In addition, phase-space methods for many-body systems were also presented. Statistical physics was the main topic in the other lectures of the School; much emphasis was put on the statistical features of macros copic ("large") systems, the lectures dealt with mass and energy transport im polymers, in gels and in microemulsions, with aggregation and growth phenomena, with relaxation in complex, correlated systems, with conduction and optical properties of polymers, and with the means of describing disordered systems, above all fractals and related hierarchical models.