This book presents an account of the exact solution of the Hubbard model in one dimension. The early chapters develop a self-contained introduction to Bethe's ansatz and its application to the one-dimensional Hubbard model. The later chapters address more advanced topics.

In the slightly more than thirty years since its formulation, the Hubbard model has become a central component of modern many-body physics. It provides a paradigm for strongly correlated, interacting electronic systems and offers insights not only into the general underlying mathematical structure of many-body systems but also into the experimental behavior of many novel electronic materials. In condensed matter physics, the Hubbard model represents the simplest theoret ical framework for describing interacting electrons in a crystal lattice. Containing only two explicit parameters - the ratio ("Ujt") between the Coulomb repulsion and the kinetic energy of the electrons, and the filling (p) of the available electronic band - and one implicit parameter - the structure of the underlying lattice - it appears nonetheless capable of capturing behavior ranging from metallic to insulating and from magnetism to superconductivity. Introduced originally as a model of magnetism of transition met als, the Hubbard model has seen a spectacular recent renaissance in connection with possible applications to high-Tc superconductivity, for which particular emphasis has been placed on the phase diagram of the two-dimensional variant of the model. In mathematical physics, the Hubbard model has also had an essential role. The solution by Lieb and Wu of the one-dimensional Hubbard model by Bethe Ansatz provided the stimulus for a broad and continuing effort to study "solvable" many-body models. In higher dimensions, there have been important but isolated exact results (e. g. , N agoaka's Theorem).

This book gathers a collection of reprints on the Hubbard Model. The major contributions to the subject since its origin are included, with the aim of providing all scientists working on the model and its applications with easy access to the relevant literature.The book is divided into five parts. The introductory part is concerned with the physical origin and motivations of the model, and contains a collection of mainly historical papers. The remaining four sections are intended to present a coherent scenario of the different approaches to the model solution: exact and rigorous statistical mechanics results; variational methods; perturbative approaches; numerical Quantum Monte Carlo and exact diagonalization studies. Among the applications special emphasis is given to high-Tc superconductivity. Each section is preceded by commentary notes from the editor.

Describing the physical properties of quantum materials near critical points with long-range many-body quantum entanglement, this book introduces readers to the basic theory of quantum phases, their phase transitions and their observable properties. This second edition begins with a new section suitable for an introductory course on quantum phase transitions, assuming no prior knowledge of quantum field theory. It also contains several new chapters to cover important recent advances, such as the Fermi gas near unitarity, Dirac fermions, Fermi liquids and their phase transitions, quantum magnetism, and solvable models obtained from string theory. After introducing the basic theory, it moves on to a detailed description of the canonical quantum-critical phase diagram at non-zero temperatures. Finally, a variety of more complex models are explored. This book is ideal for graduate students and researchers in condensed matter physics and particle and string theory.

A modern introduction to ultracold atomic physics combining fundamental theory with discussion of cold atom phenomena and applications.

This collection of articles provides authoritative and up-to-date reviews on the Hubbard Model. It will be useful to graduate students and researchers in the field. Contents:The Phase Diagram of the Hubbard Model (M W Long)Charge and Spin Fluctuations in the Hubbard Model: Fermi Liquid Properties at Low Temperatures (M Lavagna)The t-J and Frustrated Heisenberg Models: A Status Report on Numerical Studies (E Dagotto)The Hubbard-Stratonovich Transformation and the Hubbard Model (S Sorella)SO4 Symmetry in a Hubbard Model (C N Yang & S C Zhang)Mott Transition in an Exactly Solvable K.S.S.H. Model (A Montorsi & M Rasetti)The Hubbard Model: From Small to Large U (D Baeriswyl & W von der Linden)First-Order Metal-Insulator Transition in an Alloy Analogy Approach to the Hubbard Model (M Corrias)Renormalization Group Approach to Quasi-One-Dimensional Conductors (C Bourbonnais & L G Caron) Readership: Physicists and chemists. keywords:

Several different models have recently been proposed to explain High Temperature Superconductivity. This book gives an authoritative and up-to-date review of two such proposals, namely the Hubbard and Anyon Models. This invaluable reference is a must for all physicists interested in the fast-paced revolutionary field of High Temperature Superconductivity. Contents:The Hubbard HamiltonianThe Hubbard Hamiltonian in the Strong-Coupling LimitSome Ideas for Resonating Valence Bond (RVB)RVB Ground States for the Strongly Coupled Hubbard Hamiltonian at and Below Half FillingIntroduction to SuperconductivityOther Mean Field Theories for the Hubbard-Heisenberg Hamiltonian on a 2D Square LatticeNonuniform and Flux PhasesContinuum Limit and the Chern-Simons TermThe Abelian Chern-Simons TermThe Nonabelian Chern-Simons TermAnyon Superconductivity Readership: Condensed matter physicists. keywords:Hubbard Model;RVB States;High Temperature Superconductivity;Mean-Field Theories;Flux Phases;Non-Abelian Chern-Simons Theories;Abelian Chern-Simons Theories;Anyons;Anyon Superconductivity;Quantum Hall Effect