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Correlations, Coherence, and Order

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概要 This volume contains a collection of review articles that are extended versions of invited lectures given at the First Pamporovo Winter Workshop on Cooperative Phe nomena in Condensed Matter held in v...illa "Orlitza" (7th-15th March 1998, Pamporovo Ski Resort, Bulgaria). Selected research works reported at the Workshop have been published in the Journal of Physical Studies - a new International Journal for research papers in experimental and theoretical physics (Lviv University, Lviv, Ukraine). These reviews are supposed to be status reports and present new insights gained from the rapidly developing research of outstanding problems in condensed matter physics such as structural properties and phase transitions in fullerene crystals, super conductivity ofstrongly interacting electrons in copper oxides, spin polarized Fermi liq uids, chaotic vortex filaments in superfluid turbulent Helium-II, desorption induced by electronic transitions in ionic compounds, fluctuation phenomena in superconductors, and quantum critical phenomena in low dimensional magnets and quantum liquids. We have set the material according to the alphabetic order of authors' names although the high temperature superconductivity seems to be the hard kernel in condensed matter physics. The authors have taken care to present the recent advances in their research in a form which is readable and useful not only to experts in the respective field, but also to young scientists. That is why the lectures include a comprehensive introduction to the matter and also an extended discussion of methodical details.続きを見る
目次 Structural Peculiarities in Fullerene Crystals
1. Introduction
2. Fullerites and Fullerides
3. Symmetry Theory
4. Subsystem of Alkali Metal Atoms
5. The Symmetry of the Orientational States of C60 Molecule
6. The Orientational Phase Transition
7. Symmetry of Internal Vibrations of C60 Molecule
8. Molecular Strain in the Phase Pa3
9. Neutron and X-Ray Diffraction
10. Calculations for AC60
11. Conclusion
References
Fundamental Problems of Quantum Critical Phenomena
1. Introductory Notes
2. Criteria for Quantum Criticality
3. Ideal Bose Gas
4. Quantum Fluctuation Functionals
5. Bose Systems
6. Transverse Ising Model
7. Disorder Effects and 8-Integration
References
Critical Fluctuations in Normal-to-Superconducting Transition
1. Introduction
2. Normal-to-Superconducting Transition: 1st or 2nd Order?
3. The Model and Its 'Naive' Analysis
4. Resummation
5. Fixed Points and Flows in Three Dimensions
6. Critical Exponents
7. Amplitude Ratio for the Specific Heat
8. Effective Exponents
9. Conclusions
References
Spin Dynamics of Spin Polarized Fermi Liquids
I. A. Fomin
1. Introduction
2. Equations of Spin Dynamics
3. Coherently Precessing Spin Pattern
4. Relation Between Spin Waves and Precessing Pattern
5. Symmetry and General Properties of Precessing Pattern
6. Relaxation of Two-Domain Pattern
7. Effect of Demagnetizing Field
8. Difficulty of Spin Dynamics at High Polarization
9. Equations of Spin Dynamics at High Polarization
10. Conclusions
References
Chaotic Vortices in He II as an Example of Highly Disordered State of One Dimensional Singularities
1. Introduction and Scientific Background
2. Statement of the Problem
3. Feynman-Vinen Phenomenological Theory of Superfluid Turbulence
4. Modern Notion of Chaotic Vortex Line Dynamics
5. Gaussian Model of Vortex Tangle
6. Applications of Gaussian Model
7. Conclusion
References
Orientational Disorder and Order in C60-Fullerite and in MC60-Alkali Metal Fullerides
1. Introduction
2. Symmetry Adapted Functions
3. Molecular Interactions in Solid C60
4. Phase Transition and Diffuse Scattering
5. Charge Transfer and Interaction Potential in MC60
6. Electronic Orientational Coordinates
7. Phase Transitions in MC60
8. Crystal Field and Molecular Field in MC60
9. Conclusions
References
Desorption Induced by Electronic Transitions: Application to Ionic Compounds
1. Introduction
2. Optical Properties
3. Defect Formation
4. First Stimulated Desorption Experiments
5. Recent Developments
6. Discussion
References
Strong Electron Correlation Effects in Copper Oxides
1. Introduction
2. Microscopic Models
3. Spin and Charge Fluctuations
4. Quasiparticles and Superconductivity
5. Conclusions
References
Quantum Phase Transitions in 2d Quantum Liquids
1. Prelude
2. Functional Integrals
3. Superfluidity
4. Superconductivity
5. Fractional Quantized Hall Effect
6. Quantum Phase Transitions
References
List of Contributors.
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登録日 2020.06.27
更新日 2020.06.28