Search Results for symmetry-breaking-and-symmetry-restoration

This book treats the faculty of language as part of the Universe subject to physical laws.

Author: Szymon J. Napierala

Publisher: Peter Lang Gmbh, Internationaler Verlag Der Wissenschaften

ISBN: 3631673876

Category: Generative grammar

Page: 168

View: 363

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This book treats the faculty of language as part of the Universe subject to physical laws. It presents phenomena from syntax and semantics in the interdisciplinary context. The author analyses the origin of syntax and semantics as autonomous modules (asymmetry), even though they display parallelisms (symmetry). He presents linguistic phenomena in the interdisciplinary context where spontaneous symmetry breaking has a central explanatory role, as it is the case in the physical world.

Author: Chunmei Liu

Publisher:

ISBN: OCLC:1109069013

Category:

Page:

View: 176

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2019 By Chunmei Liu

Author: Timothy Hall Farris

Publisher:

ISBN: OCLC:29216470

Category: Gauge fields (Physics)

Page: 184

View: 241

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We present numerical evidence that quantum fluctuations can produce a symmetric ground-state in the double-well chain, restoring the symmetry that is broken classically.

Author:

Publisher:

ISBN: OCLC:727303145

Category:

Page: 7

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We present numerical evidence that quantum fluctuations can produce a symmetric ground-state in the double-well chain, restoring the symmetry that is broken classically. In particular, we present the phase diagram for this model that shows the symmetry restoration occurs more easily than predicted by a perturbation theory calculation of the continuum limit of the model. 13 refs., 1 fig.
1991 By

In the next Section we will see that this is nothing but the asymmetric periodic orbit born after symmetry breaking of the symmetric periodic window . 3.3 Symmetry Breaking and Restoration Symmetry breaking and symmetry restoration are ...

Author: Bai-lin Hao

Publisher: World Scientific

ISBN: 9810235127

Category: Science

Page: 443

View: 129

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Symbolic dynamics is a coarse-grained description of dynamics. It provides a rigorous way to understand the global systematics of periodic and chaotic motion in a system. In the last decade it has been applied to nonlinear systems described by one- and two-dimensional maps as well as by ordinary differential equations. This book will help practitioners in nonlinear science and engineering to master that powerful tool.
1998 By Bai-lin Hao

Recently developed nuclear many-body techniques provide novel results when applied to constituent quark models and to light-front scalar field theory.

Author: R. Lloyd

Publisher:

ISBN: OCLC:316324710

Category:

Page: 7

View: 593

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Recently developed nuclear many-body techniques provide novel results when applied to constituent quark models and to light-front scalar field theory. We show how spontaneous symmetry breaking arises and is consistent with a coherent state ansatz in a variational treatment. The kink and the kink-antikink topological features are identified and the onset of symmetry restoration is demonstrated.
2005 By R. Lloyd

Symmetry breaking and symmetry restoration are common phenomena in physical systems with a certain kind of symmetry. An equation or a thermodynamic potential may possess a higher symmetry, but a particular solution of the equation or an ...

Author: Hao Bailin

Publisher: World Scientific

ISBN: 9789813236448

Category: Science

Page: 520

View: 709

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Symbolic dynamics is a coarse-grained description of dynamics. It has been a long-studied chapter of the mathematical theory of dynamical systems, but its abstract formulation has kept many practitioners of physical sciences and engineering from appreciating its simplicity, beauty, and power. At the same time, symbolic dynamics provides almost the only rigorous way to understand global systematics of periodic and, especially, chaotic motion in dynamical systems. In a sense, everyone who enters the field of chaotic dynamics should begin with the study of symbolic dynamics. However, this has not been an easy task for non-mathematicians. On one hand, the method of symbolic dynamics has been developed to such an extent that it may well become a practical tool in studying chaotic dynamics, both on computers and in laboratories. On the other hand, most of the existing literature on symbolic dynamics is mathematics-oriented. This book is an attempt at partially filling up this apparent gap by emphasizing the applied aspects of symbolic dynamics without mathematical rigor. Contents: Preface to the Second Edition Preface to the First Edition Introduction Symbolic Dynamics of Unimodal Maps Maps with Multiple Critical Points Symbolic Dynamics of Circle Maps Symbolic Dynamics of Two-Dimensional Maps Application to Ordinary Differential Equations Counting the Number of Periodic Orbits Symbolic Dynamics and Grammatical Complexity Symbolic Dynamics and Knot Theory Appendix References Index Readership: Researchers and students interested in chaotic dynamics. Keywords: Symbolic Dynamics;ChaosReview: Key Features: No previous knowledge of dynamical systems theory is required in order to read this book The revisions concern mainly the application to ordinary differential equations via constructing two-dimensional symbolic dynamics of the corresponding Poincare maps
2018-05-11 By Hao Bailin

The main focus of this thesis is to study QCD vacuum phenomena such as Chiral Symmetry Restoration (CSR) and generation of Bound States and Resonances; we attain this by analyzing two large N QCD-like models such as the nonlinear sigma ...

Author: Juan Santiago Cortés González

Publisher:

ISBN: OCLC:1065768008

Category:

Page:

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The main focus of this thesis is to study QCD vacuum phenomena such as Chiral Symmetry Restoration (CSR) and generation of Bound States and Resonances; we attain this by analyzing two large N QCD-like models such as the nonlinear sigma model for a large number of flavors, and AdS/QCD nonconformal approaches where a large number of color is considered. We use the first model to study CSR after breaking it both dynamically and explicitly so that finite-temperature effects are easily introduced. We find some interesting properties regarding critical phenomena and universality classes. The second model we use allows to find the masses of light meson resonances in a gravitational-like approach defined at zero temperature (without Chiral Symmetry Breaking effects). We find here some interesting results since most of these masses are in great concordance with both experimental and theoretical/phenomenological results.--Tomado del Formato de Documento de Grado.

SYMMETRY NON-RESTORATION AT HIGH TEMPERATURE N. RJUS Depto. de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia-CSIC ... 1 Review of Symmetry Non-restoration and Inverse Symmetry Breaking It has been known for a long time*, ...

Author: Leszek Roszkowski

Publisher: World Scientific

ISBN: 9789814536806

Category:

Page: 604

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Deciphering the script for the Big Bang has now become a joint effort of particle physicists and cosmologists. The origin and first moments of the early Universe were determined by the same fundamental processes which are studied in terrestrial accelerators and whose traces from the early Universe can be seen in astrophysical observations. It is now almost universally accepted that most of the debris left over from the Big Bang is likely to be in the form of particle dark matter. Identifying its nature and measuring its abundance in the Universe have become major goals of theorists and experimentalists alike. This volume reviews the progress made at the frontiers of research in these rapidly expanding fields. A broad range of topics, from inflation to primordial black holes to physics at the Planck era, and to dark matter and neutrinos — both reviews and reports on the most recent advances — is presented by leaders in the field. Contents: Neutrino Puzzles and Their Implications for the Nature of New Physics (R N Mohapatra)Neutrino Oscillation Search in CHORUS and NOMAD (J Herin)Double Beta Decay — Physics Beyond the Standard Model Now, and in Future (GENIUS) (H V Klapdor-Kleingrothaus)Cryogenic Searches for Dark Matter (D A Bauer)Accelerator Constraints on Neutralino Dark Matter (J Ellis)Non-universal Soft SUSY Breaking and Dark Matter (P Nath & R Arnowitt)Status of the Heidelberg Dark Matter Search (HDMS) Experiment (Y Ramachers)WIMPs Detection Using Double Phase TEA Doped Xenon (H Wang)Probing Inflation with Large-Scale Structure (J Frieman)Who is the Inflaton? (E Kolb)Recent Progress in Inflationary Cosmology (A Linde)Preheating After Inflation (L Kofman)What is the Future of Causal Models of Cosmic Structure Formation? (A Albrecht)Magnetic Fields from the Electroweak Phase Transition (O Törnkvist)Finite Temperature Corrections to CP Violating Asymmetries for Baryogenesis (L Covi et al.)Evaporation of Cosmological Black Holes (R Bousso & S W Hawking)Black Holes and Superstrings (R E Kallosh)The Importance of Non-Gaussian Fluctuations in Inflationary Primordial Black Hole Production (J S Bullock & J R Primack)and other papers Readership: Astrophysicists and high energy physicists. Keywords:Big Bang;Early;Universe;Neutrino;Dark Matter;Cosmology;Primordial;Astrophysics
1998-09-22 By Leszek Roszkowski

The symmetry of the ALS magnetic lattice is crucial in suppressing nonlinear structural resonances. Breaking the symmetry of the lattice can lead to a reduction in the dynamic aperture.

Author:

Publisher:

ISBN: OCLC:68408167

Category:

Page: 6

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The symmetry of the ALS magnetic lattice is crucial in suppressing nonlinear structural resonances. Breaking the symmetry of the lattice can lead to a reduction in the dynamic aperture. The degree of symmetry breaking can be determined by fitting a magnetic lattice model to the measured orbit response matrix. This reveals a large beating of the vertical beta-function caused mainly by gradient errors in the QD quadrupole magnets. When the quadrupole field strengths are adjusted to compensate for the gradient errors, the symmetry of the lattice is restored. The new lattice has a larger dynamic aperture and an improved injection efficiency.
1996 By

Symmetry. Breaking. to. Symmetry. Restoration. by. Attosecond. Quantum. Control. ChunMei Liu, Jörn Manz and Jean Christophe Tremblay Abstract It is well known that laser pulses can break electronic structure symmetry of atoms and ...

Author: Kaoru Yamanouchi

Publisher: Springer

ISBN: 9783030037864

Category: Science

Page: 291

View: 629

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This 14th volume in the PUILS series presents up-to-date reviews of advances in Ultrafast Intense Laser Science, an interdisciplinary research field spanning atomic and molecular physics, molecular science, and optical science, which has been stimulated by the rapid developments in ultrafast laser technologies. Each chapter begins with an overview of the topics to be discussed, so that researchers unfamiliar to the subfield, as well as graduate students, can grasp the importance and appeal of the respective subject matter; this is followed by reports on cutting-edge discoveries. This volume covers a broad range of topics from this interdisciplinary field, e.g. atoms and molecules interacting in intense laser fields, laser-induced filamentation, high-order harmonics generation, and high-intensity lasers and their applications.
2018-12-28 By Kaoru Yamanouchi

This indicates no direct one-to-one correspondence between quark confinement and chiral symmetry breaking in QCD. ... However, if deconfinement transition and chiral symmetry restoration are different, one can expect various new QCD ...

Author: Takahiro Doi

Publisher: Springer

ISBN: 9789811065965

Category: Science

Page: 59

View: 927

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This thesis focuses on an unresolved problem in particle and nuclear physics: the relation between two important non-perturbative phenomena in quantum chromodynamics (QCD) – quark confinement and chiral symmetry breaking. The author develops a new analysis method in the lattice QCD, and derives a number of analytical formulae to express the order parameters for quark confinement, such as the Polyakov loop, its fluctuations, and the Wilson loop in terms of the Dirac eigenmodes closely related to chiral symmetry breaking. Based on the analytical formulae, the author analytically as well as numerically shows that at finite temperatures there is no direct one-to-one correspondence between them. The thesis describes this extraordinary achievement using the first-principle analysis, and proposes a possible new phase in which quarks are confined and chiral symmetry is restored.
2017-10-10 By Takahiro Doi

This book will be essential reading for researchers and students in both experimental and theoretical nuclear physics, and related research fields such as metal clusters, fullerenes and quantum dots.

Author: David M. Brink

Publisher: Cambridge University Press

ISBN: 9781139443074

Category: Science

Page:

View: 839

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Nuclear Superfluidity is an advanced text devoted exclusively to pair correlations in nuclei. It begins by exploring pair correlations in a variety of systems including superconductivity in metals at low temperatures and superfluidity in liquid 3He and in neutron stars. The book goes on to introduce basic theoretical methods, symmetry breaking and symmetry restoration in finite many-body systems. The last four chapters are devoted to introducing results on the role of induced interactions in the structure of both normal and exotic nuclei. The most important of these is the renormalization of the pairing interaction due to the coupling of pairs of nucleons to low energy nuclear collective excitations. This book will be essential reading for researchers and students in both experimental and theoretical nuclear physics, and related research fields such as metal clusters, fullerenes and quantum dots.
2005-06-08 By David M. Brink

Symmetry restoration and topological defects Symmetries that are spontaneously broken in the present Universe may be present in the early Universe because of field interactions . This goes under the somewhat misleading name of symmetry ...

Author: Andrew R. Liddle

Publisher: Cambridge University Press

ISBN: 0521575982

Category: Science

Page: 400

View: 382

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A thorough and up-to-date graduate textbook on the most promising theory of the universe - inflationary cosmology.
2000-04-13 By Andrew R. Liddle

Tunneling into the edge of a quantum Hall droplet is a sensitive probe of the topological orders believed to exist in fractional quantum Hall states.

Author: Joel Ellis Moore

Publisher:

ISBN: OCLC:50419988

Category:

Page: 96

View: 743

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Tunneling into the edge of a quantum Hall droplet is a sensitive probe of the topological orders believed to exist in fractional quantum Hall states. The tunneling behavior of a general hierarchy state is studied within the chiral-Luttinger-liquid model of low-energy edge dynamics. Adding random hopping of quasiparticles between edge modes results in "symmetry restoration by disorder" and universal weak tunneling behavior in edges with modes traveling in both directions. We develop a boost coordinate technique and apply it to find the edge phases and tunneling exponents of all topologically stable principal hierarchy states. States with neutral modes in both directions along the edge have multiple stable fixed points which can be classified by their symmetries. When the tunneling current into an edge is large, the system can cross over from the weak-tunneling fixed point to a different strongly coupled fixed point with different conductance and effective charge. Edges with multiple modes can have multiple strongly coupled fixed points. We develop a general formalism to analyze weakly and strongly coupled fixed points of point tunneling. Adding interactions to tunneling between two Laughlin edges is shown to lead to a continuous variation of effective quasiparticle charge and conductance with interaction strength.

4.1.5 Chiral symmetry restoration At the end of this section we briefly address connections of in-medium kaon dynamics to ... The small but finite current quark masses are responsible for the explicit chiral symmetry breaking of QCD.

Author: Bengt Friman

Publisher: Springer

ISBN: 9783642132933

Category: Science

Page: 980

View: 607

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This exhaustive survey is the result of a four year effort by many leading researchers in the field to produce both a readable introduction and a yardstick for the many upcoming experiments using heavy ion collisions to examine the properties of nuclear matter. The books falls naturally into five large parts, first examining the bulk properties of strongly interacting matter, including its equation of state and phase structure. Part II discusses elementary hadronic excitations of nuclear matter, Part III addresses the concepts and models regarding the space-time dynamics of nuclear collision experiments, Part IV collects the observables from past and current high-energy heavy-ion facilities in the context of the theoretical predictions specific to compressed baryonic matter. Part V finally gives a brief description of the experimental concepts. The book explicitly addresses everyone working or planning to enter the field of high-energy nuclear physics.
2011-03-03 By Bengt Friman

... 251, 254 Subgroup of translations, 97 Subsystems, 162 Superconducting gap symmetries, 294 Superconducting planes, ... 288 T-symmetry breaking in nuclei, 289 T-symmetry lowering, 282 T-symmetry restoration, 281 T-symmetry violation, ...

Author: Ion I. Geru

Publisher: Springer

ISBN: 9783030012106

Category: Science

Page: 362

View: 132

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This book introduces new developments in the field of Time-Reversal Symmetry presenting, for the first time, the Wigner time-reversal operator in the form of a product of two- or three time-reversal operators of lower symmetry. The action of these operators leads to the sign change of only one or two angular momentum components, not of all of them. It demonstrates that there are six modes of time-reversal symmetry breaking that do not lead to the complete disappearance of the symmetry but to its lowering. The full restoration of the time-reversal symmetry in the six cases mentioned is possible by introducing six types of metaparticles. The book also confirms the presence of six additional time-reversal operators using a group-theoretical method. The problem is only where to seek these metaparticles. The book discusses time-reversal symmetry in classical mechanics, classical and relativistic electrodynamics, quantum mechanics and theory of quantized fields, including dynamical reversibility and statistical irreversibility of the time, Wigner’s and Herring’s criteria, Kramers theorem, selection rules due to time-reversal symmetry, Onsager’s relations, Poincaré recurrence theorem, and CPT theorem. It particularly focuses attention on time-reversal symmetry violation. It is proposed a new method of testing the time-reversal symmetry, which is confirmed experimentally by EPR spectroscopy data. It shows that the traditional black-white point groups of magnetic symmetry are not applicable to magnetic systems with Kramers degeneration of energy levels and that magnetic groups of four-color symmetry are adequate for them. Further, it addresses the predicted structural distortions in Kramers three-homonuclear magnetic clusters due to time-reversal symmetry that have been identified experimentally. Lastly, it proposes a method of synthesis of two-nuclear coordination compounds with predictable magnetic properties, based on the application of the time-reversal transformation that was confirmed experimentally.
2018-12-31 By Ion I. Geru

Emotional episodes result in symmetry breaking; and successful symmetry restoration is referred to as harmony, in the words of Fung, (1962): “To have the emotions welling up and yet in due proportion is also a state of the mean ...

Author: Louise Sundararajan

Publisher: Springer

ISBN: 9783319182216

Category: Psychology

Page: 210

View: 882

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This mind-opening take on indigenous psychology presents a multi-level analysis of culture to frame the differences between Chinese and Western cognitive and emotive styles. Eastern and Western cultures are seen here as mirror images in terms of rationality, relational thinking, and symmetry or harmony. Examples from the philosophical texts of Confucianism, Daoism, Buddhism, and classical poetry illustrate constructs of shading and nuancing emotions in contrast to discrete emotions and emotion regulation commonly associated with traditional psychology. The resulting text offers readers bold new understandings of emotion-based states both familiar (intimacy, solitude) and unfamiliar (resonance, being spoiled rotten), as well as larger concepts of freedom, creativity, and love. Included among the topics: The mirror universes of East and West. In the crucible of Confucianism. Freedom and emotion: Daoist recipes for authenticity and creativity. Chinese creativity, with special focus on solitude and its seekers. Savoring, from aesthetics to the everyday. What is an emotion? Answers from a wild garden of knowledge. Understanding Emotion in Chinese Culture has a wealth of research and study potential for undergraduate and graduate courses in affective science, cognitive psychology, cultural and cross- cultural psychology, indigenous psychology, multicultural studies, Asian psychology, theoretical and philosophical psychology, anthropology, sociology, international psychology, and regional studies.
2015-07-06 By Louise Sundararajan

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