Self Consistent Quantum Field Theory And Bosonization For Strongly Correlated Electron Systems

Author : Rudolf Haussmann
Publisher : Springer Science & Business Media
ISBN 13 : 3540489363
Total Pages : 181 pages
Book Rating : 4.68/5 ( download)

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Download or read book Self-consistent Quantum-Field Theory and Bosonization for Strongly Correlated Electron Systems written by Rudolf Haussmann and published by Springer Science & Business Media. This book was released on 2003-07-01 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research monograph offers an introduction to advanced quantum field theoretical techniques for many-particle systems beyond perturbation theory. Several schemes for resummation of the Feynman diagrams are described. The resulting approximations are especially well suited for strongly correlated fermion and boson systems. Also considered is the crossover from BCS superconductivity to Bose--Einstein condensation in fermion systems with strong attractive interaction. In particular, a field theoretic formulation of "bosonization" is presented; it is published here for the first time. This method is applied to the fractional quantum Hall effect, to the Coulomb plasma, and to several exactly solvable models.

Author : Naoto Nagaosa
Publisher : Springer Science & Business Media
ISBN 13 : 9783540659815
Total Pages : 188 pages
Book Rating : 4.11/5 ( download)

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Download or read book Quantum Field Theory in Strongly Correlated Electronic Systems written by Naoto Nagaosa and published by Springer Science & Business Media. This book was released on 1999-09-20 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the author extends the concepts introduced in his Quantum Field Theory in Condensed Matter Physics to situations in which the strong electronic correlations are crucial for the understanding of the observed phenomena. Starting from a model field theory to illustrate the basic ideas, more complex systems are analyzed in turn. A special chapter is devoted to the description of antiferromagnets, doped Mott insulators, and quantum Hall liquids from the point of view of gauge theory.

Author : Detlef Lehmann
Publisher : CRC Press
ISBN 13 : 148228605X
Total Pages : 264 pages
Book Rating : 4.52/5 ( download)

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Download or read book Mathematical Methods of Many-Body Quantum Field Theory written by Detlef Lehmann and published by CRC Press. This book was released on 2004-08-30 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical Methods of Many-Body Quantum Field Theory offers a comprehensive, mathematically rigorous treatment of many-body physics. It develops the mathematical tools for describing quantum many-body systems and applies them to the many-electron system. These tools include the formalism of second quantization, field theoretical perturbation theo

Author : David Sénéchal
Publisher : Springer Science & Business Media
ISBN 13 : 0387217177
Total Pages : 370 pages
Book Rating : 4.78/5 ( download)

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Download or read book Theoretical Methods for Strongly Correlated Electrons written by David Sénéchal and published by Springer Science & Business Media. This book was released on 2006-05-09 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on the purely theoretical aspects of strongly correlated electrons, this volume brings together a variety of approaches to models of the Hubbard type - i.e., problems where both localized and delocalized elements are present in low dimensions. The chapters are arranged in three parts. The first part deals with two of the most widely used numerical methods in strongly correlated electrons, the density matrix renormalization group and the quantum Monte Carlo method. The second part covers Lagrangian, Functional Integral, Renormalization Group, Conformal, and Bosonization methods that can be applied to one-dimensional or weakly coupled chains. The third part considers functional derivatives, mean-field, self-consistent methods, slave-bosons, and extensions.

Author : Rubén Seoane Souto
Publisher : Springer Nature
ISBN 13 : 3030365956
Total Pages : 226 pages
Book Rating : 4.50/5 ( download)

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Download or read book Quench Dynamics in Interacting and Superconducting Nanojunctions written by Rubén Seoane Souto and published by Springer Nature. This book was released on 2020-02-05 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of many-body interactions and superconducting correlations have become central questions in the quantum transport community. While most previous works investigating current fluctuations in nanodevices have been restricted to the stationary regime, Seoane's thesis extends these studies to the time domain. It provides relevant information about the time onset of electronic correlations mediated by interactions and superconductivity. This knowledge is essential for the development of fast electronic devices, as well as novel applications requiring fast manipulations, such as quantum information processing. In addition, the thesis establishes contact with issues of broad current interest such as non-equilibrium quantum phase transitions.

Author : M. Inguscio
Publisher : IOS Press
ISBN 13 : 1614996946
Total Pages : 590 pages
Book Rating : 4.41/5 ( download)

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Download or read book Quantum Matter at Ultralow Temperatures written by M. Inguscio and published by IOS Press. This book was released on 2016-09-27 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Enrico Fermi summer school on Quantum Matter at Ultralow Temperatures held on 7-15 July 2014 at Varenna, Italy, featured important frontiers in the field of ultracold atoms. For the last 25 years, this field has undergone dramatic developments, which were chronicled by several Varenna summer schools, in 1991 on Laser Manipulation of Atoms, in 1998 on Bose-Einstein Condensation in Atomic Gases, and in 2006 on Ultra-cold Fermi Gases. The theme of the 2014 school demonstrates that the field has now branched out into many different directions, where the tools and precision of atomic physics are used to realise new quantum systems, or in other words, to quantum-engineer interesting Hamiltonians. The topics of the school identify major new directions: Quantum gases with long range interactions, either due to strong magnetic dipole forces, due to Rydberg excitations, or, for polar molecules, due to electric dipole interactions; quantum gases in lower dimensions; quantum gases with disorder; atoms in optical lattices, now with single-site optical resolution; systems with non-trivial topological properties, e.g. with spin-orbit coupling or in artificial gauge fields; quantum impurity problems (Bose and Fermi polarons); quantum magnetism. Fermi gases with strong interactions, spinor Bose-Einstein condensates and coupled multi-component Bose gases or Bose-Fermi mixtures continue to be active areas. The current status of several of these areas is systematically summarized in this volume.

Author : Karl-Heinz Bennemann
Publisher : OUP Oxford
ISBN 13 : 0191029998
Total Pages : 592 pages
Book Rating : 4.98/5 ( download)

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Download or read book Novel Superfluids written by Karl-Heinz Bennemann and published by OUP Oxford. This book was released on 2014-11-27 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 2 of Novel Superfluids continues the presentation of recent results on superfluids, including novel metallic systems, superfluid liquids, and atomic/molecular gases of bosons and fermions, particularly when trapped in optical lattices. Since the discovery of superconductivity (Leyden, 1911), superfluid 4He (Moscow and Cambridge, 1937), superfluid 3He (Cornell, 1972), and observation of Bose-Einstein Condensation (BEC) of a gas (Colorado and MIT, 1995), the phenomenon of superfluidity has remained one of the most important topics in physics. Again and again, novel superfluids yield surprising and interesting behaviors. The many classes of metallic superconductors, including the high temperature perovskite-based oxides, MgB2, organic systems, and Fe-based pnictides, continue to offer challenges. The technical applications grow steadily. What the temperature and field limits are remains illusive. Atomic nuclei, neutron stars and the Universe itself all involve various aspects of superfluidity, and the lessons learned have had a broad impact on physics as a whole.

Author : Società italiana di fisica
Publisher : IOS Press
ISBN 13 : 158603846X
Total Pages : 933 pages
Book Rating : 4.65/5 ( download)

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Download or read book Proceedings of the International School of Physics "Enrico Fermi." written by Società italiana di fisica and published by IOS Press. This book was released on 2007 with total page 933 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of cold atomic gases faced a revolution in 1995 when Bose-Einstein condensation was achieved. The quest for ultra-cold Fermi gases started shortly after the 1995 discovery, and quantum degeneracy in a gas of fermionic atoms was obtained in 1999. This work covers experimental techniques for the creation and study of Fermi quantum gases.

Author : M. Inguscio
Publisher : IOS Press
ISBN 13 : 1607503182
Total Pages : 933 pages
Book Rating : 4.87/5 ( download)

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Download or read book Ultra-cold Fermi Gases written by M. Inguscio and published by IOS Press. This book was released on 2008-04-18 with total page 933 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of cold atomic gases faced a revolution in 1995 when Bose-Einstein condensation was achieved. Since then, there has been an impressive progress, both experimental and theoretical. The quest for ultra-cold Fermi gases started shortly after the 1995 discovery, and quantum degeneracy in a gas of fermionic atoms was obtained in 1999. The Pauli exclusion principle plays a crucial role in many aspects of ultra-cold Fermi gases, including inhibited interactions with applications to precision measurements, and strong correlations. The path towards strong interactions and pairing of fermions opened up with the discovery in 2003 that molecules formed by fermions near a Feshbach resonance were surprisingly stable against inelastic decay, but featured strong elastic interactions. This remarkable combination was explained by the Pauli exclusion principle and the fact that only inelastic collisions require three fermions to come close to each other. The unexpected stability of strongly interacting fermions and fermion pairs triggered most of the research which was presented at this summer school. It is remarkable foresight (or good luck) that the first steps to organize this summer school were already taken before this discovery. It speaks for the dynamics of the field how dramatically it can change course when new insight is obtained. The contributions in this volume provide a detailed coverage of the experimental techniques for the creation and study of Fermi quantum gases, as well as the theoretical foundation for understanding the properties of these novel systems.

Author : C. J. Pethick
Publisher : Cambridge University Press
ISBN 13 : 1139811088
Total Pages : 538 pages
Book Rating : 4.88/5 ( download)

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Download or read book Bose–Einstein Condensation in Dilute Gases written by C. J. Pethick and published by Cambridge University Press. This book was released on 2008-09-11 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since an atomic Bose-Einstein condensate, predicted by Einstein in 1925, was first produced in the laboratory in 1995, the study of ultracold Bose and Fermi gases has become one of the most active areas in contemporary physics. This book explains phenomena in ultracold gases from basic principles, without assuming a detailed knowledge of atomic, condensed matter, and nuclear physics. This new edition has been revised and updated, and includes new chapters on optical lattices, low dimensions, and strongly-interacting Fermi systems. This book provides a unified introduction to the physics of ultracold atomic Bose and Fermi gases for advanced undergraduate and graduate students, as well as experimentalists and theorists. Chapters cover the statistical physics of trapped gases, atomic properties, cooling and trapping atoms, interatomic interactions, structure of trapped condensates, collective modes, rotating condensates, superfluidity, interference phenomena, and trapped Fermi gases. Problems are included at the end of each chapter.