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Open Problems in Strongly Correlated Electron Systems : Open Problems in Strongly Correlated Electron Systems Proceedings of the NATO Advanced Research Workshop, Bled, Slovenia, 26-30 April 2000 - Janez Bonca

Open Problems in Strongly Correlated Electron Systems

Open Problems in Strongly Correlated Electron Systems Proceedings of the NATO Advanced Research Workshop, Bled, Slovenia, 26-30 April 2000

By: Janez Bonca (Editor), Peter Prelovsek (Editor), Anton Ramsak (Editor), Sarben Sarkar (Editor)

Paperback Published: 30th April 2001
ISBN: 9780792368960
Number Of Pages: 461

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In the last decade it has become increasingly evident that strong correla- tions between electrons are an essential and unifying factor in such diverse phenomena within solid state physics as high-temperature superconductivity, colossal magnetoresistance, the quantum Hall effect, heavy-fermion metals and Coulomb blockade in single-electron transistors. A new paradigmofnon- FermiLiquidbehaviourisalsoemergingand, inanumberofsystems, replacing the Fermi liquid, which has been the cornerstone ofthe physics of metals and superconductors for the pastdecades. In spite of major achievements, the theoretical studies and understanding of strongly-correlated electrons seems to be still in its infancy. Anomalous electron properties have been studied in some generic models of correlated electrons, such as the Hubbard and t-J models, the Anderson and Kondo impurity models, and their lattice equivalents. New insights into the behaviour of these, and related models is emerging from the introduction of powerful numerical methods to study such many-body models, including approximate techniquesofmany-body theory and exactresults inlow-andhigh-dimensional systems. Theseall showconvincingevidenceforbreakdownoftheFermiliquid concept. The Bled workshop focused on several major open questions in the theory of anomalous metals with correlated electrons. These theoretical advances were complemented by the latest experimental results in related materials, presented by leading experimentalists in the field. The main emphasis was on the following topics: - physics ofcuprates and high-temperature superconductors, - charge- and spin-ordering and fluctuations, - manganites and colossal magnetoresistance, - low-dimensional systems and transport, - Mott-Hubbard transition and infinite dimensional systems, - quantum Hall effect.

Cuprates: Fermi Surface and Spectral Functions
Summary of ARPES Results on the Pseudogap in Bi2Sr2CaCu2O8+delta
On the Breakdown of Landau-Fermi Liquid Theory in the Cuprates
Metal-Insulator Transition and Many-body Band Structure of the Hubbard Model
Spectral Properties of Underdoped Cuprates
High Resolution Fermi Surface Mapping of Pb-doped Bi-2212
Single Particle Excitations in the t-J Model
Cuprates: Spin and Charge Fluctuations
Magnetic Resonance Peak and Nonmagnetic Impurities
Pseudogap and Kinetic Pairing Under Critical Differentiation of Electrons in Cuprate Superconductors
Density Response of Cuprates and Renormalization of Breathing Phonons
Phase Diagram of Spin Ladder Models and the Topology of Short Range Valence Bonds
Diagrammatic Theory of Anderson Impurity Models: Fermi and Non-Fermi Liquid Behavior
s+d Mixing in Cuprates: Strong electron correlations and superconducting gap symmetry
Cuprates: Stripe and Charge Ordering
Fermi Surface, Pseudogaps and Dynamical Stripes in LA2-xSRxCUO4
Stripes and Nodal Fermions as Two Sides of the Same Coin
DMRG Studies of Stripes and Pairing in the t-J Model
Coexistence of Charge and Spin-Peierls Orders in the 1/4-filled Ladder NaV2O5
Cuprates: Numerical Methods and Quantum Hall Effect
Normal State Properties of Cuprates: t-J Model vs
Stability of d-wave Superconductivity in the t-J Model
A New Simulation Method for Infinite Size Lattices
Universality in 2-D Quantum Heisenberg Antiferromagnets
Stripes and Pairing in the ugr; = 5/2 Quantum Hall Effect
Manganites, Orbital Degeneracy
Theory of Manganites: The Key Role of Phase Segregation
Magnetic and Orbital Ordering in Manganites
Orbital Dynamics: The Origin of Anomalous Magnon Softening in Ferromagnetic Manganites
Field Induced Metal-Insulator Transition in (Pr:Ca:Sr)MnO3
Triplet Pairing via Local Exchange in Correlated Systems
Low Dimensional Systems and Transport
Dimensional Crossover, Electronic Confinement and Charge Localization in Organic Metals
Drude Weight, Integrable Systems and the Reactive Hall Constant
Inhomogeneous Luttinger Liquids: Power-Laws and Energy Scales
Nodal Liquids and Duality
Spin-Charge Separation in the Sr2 CuO3 and SrCuO2 Chain Materials
Frustrated Quantum Ising Model and Charged Kinks
Ergodic Properties of Quantum Spin Chains: Kicked Transverse Ising Model
Mott-Hubbard Transition, Infinite Dimension
Strongly Correlated Electrons: A Dynamical Mean Field Perspective
d-wave Pairing in the Strong-coupling 2D Hubbard Model
Studies of the Mott-Hubbard Transition in One and Infinite Dimensions
Quantum Critical Behavior of Correlated Electrons: Resonant States
Theory of Valence Transitions in Ytterbium-based Compounds
Strong Electronic Correlations and Low Energy Scales
Non-magnetic Mott Insulator Phase and Anomalous Conducting States in Barium Vanadium Trisulphide
Short Contributions
Low-Energy Excitations in Anisotropic Spin-Orbital Model
Dynamical Mean-Field Selfconsistency Relation for Multiband Systems
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9780792368960
ISBN-10: 0792368967
Series: NATO Science Series II: Mathematics, Physics and Chemistry
Audience: General
Format: Paperback
Language: English
Number Of Pages: 461
Published: 30th April 2001
Publisher: Springer
Country of Publication: NL
Dimensions (cm): 23.39 x 15.6  x 2.46
Weight (kg): 0.67