Pair Correlations In Many Fermion Systems

Author : Vladimir Z. Kresin
Publisher : Springer Science & Business Media
Page : 290 pages
File Size : 52,5 Mb
Release : 2013-06-29
Category : Science
ISBN : 9781489915559

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Pair Correlations in Many-Fermion Systems by Vladimir Z. Kresin Pdf

At first glance, the articles in this book may appear to have nothing in common. They cover such seemingly disparate subjects as the properties of small metallic clusters and the behavior of superfluid He3, nuclear physics and organic materials, copper oxides and mag netic resonance. Why have they been brought together, particUlarly in our time of narrow spe cialization? In fact, the properties and effects described in this book touch upon one and the same fundamental phenomenon: pair correlation. Introduced in the theory of superconductivity by J. Bardeen, L. Cooper, and J. Schrieffer (BCS), this effect plays a key role in various Fermi systems. The book consists of several sections. The first chapter is concerned with conven tional and high Tc superconductors. The second chapter describes two relatively young fami lies of superconductors: organics and fullerenes. Chapter III addresses the superfluidity of 3 He • The discovery of this phenomenon in 1971 was a big event in physics and last year was acknowledged by a Nobel prize. This book contains the text of the Nobel lecture. Chapters IV and V are devoted to correlations in finite Fermi systems such as small metallic clusters, C 60 anions, and atomic nuclei. The book thus covers a broad range of problems, illuminating the close ties between various areas of physics.

Author : Joachim Alexander Maruhn,Paul-Gerhard Reinhard,Eric Suraud
Publisher : Springer Science & Business Media
Page : 281 pages
File Size : 47,5 Mb
Release : 2010-05-17
Category : Science
ISBN : 9783642038396

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Simple Models of Many-Fermion Systems by Joachim Alexander Maruhn,Paul-Gerhard Reinhard,Eric Suraud Pdf

The term “ nite Fermi systems” usually refers to systems where the fermionic nature of the constituents is of dominating importance but the nite spatial extent also cannot be ignored. Historically the prominent examples were atoms, molecules, and nuclei. These should be seen in contrast to solid-state systems, where an in nite extent is usually a good approximation. Recently, new and different types of nite Fermi systems have become important, most noticeably metallic clusters, quantum dots, fermion traps, and compact stars. The theoretical description of nite Fermi systems has a long tradition and dev- oped over decades from most simple models to highly elaborate methods of ma- body theory. In fact, nite Fermi systems are the most demanding ground for theory as one often does not have any symmetry to simplify classi cation and as a possibly large but always nite particle number requires to take into account all particles. In spite of the practical complexity, most methods rely on simple and basic schemes which can be well understood in simple test cases. We therefore felt it a timely undertaking to offer a comprehensive view of the underlying theoretical ideas and techniques used for the description of such s- tems across physical disciplines. The book demonstrates how theoretical can be successively re ned from the Fermi gas via external potential and mean- eld m- els to various techniques for dealing with residual interactions, while following the universality of such concepts like shells and magic numbers across the application elds.

Author : José M Arias,M Isabel Gallardo,Manuel Lozano
Publisher : World Scientific
Page : 368 pages
File Size : 50,6 Mb
Release : 1998-05-30
Category : Electronic
ISBN : 9789814545174

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Many-body Theory of Correlated Fermion Systems by José M Arias,M Isabel Gallardo,Manuel Lozano Pdf

The structure of matter is intimately related to the fundamental role played by many-fermion systems. The development in the last few decades of the microscopic many-body theory of correlated fermion systems has been a fertile ground not only for spectacular achievements in basic science in various areas of research, but also for technological applications. Among the numerous phenomena discovered and studied in systems of many fermions, one can cite the superconductivity in metals, the superfluidity in 3He, nuclear matter and nuclei, the quantum Hall effect, the giant resonances in nuclei, the Anderson location and the metal–insulator transition, hole and electron diffusion in doped semiconductors, etc. All these phenomena can be understood only in terms of correlations occurring in many-fermion systems, and the formulation of the correct microscopic theory of each phenomenon has marked a milestone in pure science as well as the starting point for the exploitation of its potential technological applications. It is likely that in the future further developments will take place in this field of basic science. The Hispalensis International School is a summer school aimed mainly at young physicists, both theoreticians and experimentalists, engaged in research work at the predoctoral or recent postdoctoral level. The objective of the School provide an opportunity for participants to come into contact with experienced researchers and hear their clear account of the state of the art of many-body theories in nuclear physics, as well as in related fields, and the main future lines of development. Contents:A Microscopic Theory of Magnetic Order in Strongly Correlated Quantum Spin Lattices (R F Bishop & D J J Farnell)Translationally Invariant Coupled Cluster Method in Finite Nuclei (R Guardiola et al)Many-Body Theory of Electron Gas, Quantum Dots and Metal Clusters (E Lipparini)Electrons in Mesoscopic Systems (J Martorell)Microscopic Calculations on Normal Helium-3 at Zero Temperature (S Fantoni & S Moroni)Quantum Transport in Strongly Correlated Systems (R Malfliet)Stochastic Approaches to Out-of-Equilibrium Dynamics (Ph Chomaz)Symmetries in Nuclear Models (P Van Isacker)Many–Body Approximations to Nuclear Structure Problems (J L Egido)Monte–Carlo Shell–Model Calculations (T Otsuka et al)The Dyson Equation Approach to Many–Body Green's Functions (P Schuck et al)Relativisitic Thomas–Fermi Description of Collective Modes in Droplets of Nuclear Matter (C da Providencia et al)Quasiparticles and Collective Excitations in the Quark–Gluon Plasma (J P Blaizot)Nonperturbative Study of Hadron Structure Using Lattice QCD (J W Negele) Readership: Condensed-matter, nuclear and atomic physicists. Keywords:

Author : Ricardo A Broglia,Vladimir Zelevinsky
Publisher : World Scientific
Page : 692 pages
File Size : 45,7 Mb
Release : 2013-01-18
Category : Science
ISBN : 9789814412506

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Fifty Years of Nuclear BCS by Ricardo A Broglia,Vladimir Zelevinsky Pdf

This unique volume reviews more than fifty years of theoretical and experimental developments of the concept that properties of atomic nuclei up to a great extent are defined by the pair correlations of nuclear constituents — protons and neutrons. Such correlations in condensed matter are responsible for quantum phenomena on a macroscopic level — superfluidity and superconductivity. After introducing Bardeen–Cooper–Schrieffer (BCS) theory of superconductivity of metals, it became clear that atomic nuclei have properties of superfluid drops, and practically all features of nuclei strongly depend on the pair correlations. Presenting a comprehensive overview of the progress of nuclear science, the contributions from leading physicists around the world, cover the whole spectrum of studies in nuclear physics and physics of other small systems. With the most updated information written in an accessible way, the volume will serve as an irreplaceable source of references covering many years of development and insight into several new problems at the frontiers of science. It will be useful not only for physicists working in nuclear and condensed matter physics, astrophysicists, chemists and historians of science, but will also help students understand the current status and perspectives for the future. Contents:BCS Pairing (and Beyond) in Nuclear Structure and DynamicsThe Nuclear Pairing Interaction in Finite Nuclei and in Neutron StarsSingle- and Multiple-Pair Tunneling in Nuclear Reactions (Experiment and Theory)Pairing in Nuclei in An External Time-Reversal Violating Field: Rapidly Rotating NucleiThe Nuclear BCS (Pairing) Paradigm in Other Many-Body Systems Readership: Nuclear and theoretical physicists, chemists and astrophysicists. Keywords:Nuclear Structure;Transfer Reactions;Nuclear Superfluidity;Nuclear Matter;Neutron Star Crust;Pairing In Fermi SystemsKey Features:Currently there are no competing titles on the market, the books of this breadth and depth were not published beforeThe contributors are experts from leading institutions of the world

Author : Anonim
Publisher : Unknown
Page : 1336 pages
File Size : 52,5 Mb
Release : 1966
Category : Government publications
ISBN : MINN:319510005782177

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Government-wide Index to Federal Research & Development Reports by Anonim Pdf

Author : Mark Gower Alford,John Walter Clark,Armen Sedrakian
Publisher : World Scientific
Page : 298 pages
File Size : 45,9 Mb
Release : 2006
Category : Science
ISBN : 9789812773043

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Pairing in Fermionic Systems by Mark Gower Alford,John Walter Clark,Armen Sedrakian Pdf

Cooper pairing of fermions is a profound phenomenon that has become very important in many different areas of physics in the recent past. This book brings together, for the first time, experts from various fields involving Cooper pairing, at the level of BCS theory and beyond, including the study of novel states of matter such as ultracold atomic gases, nuclear systems at the extreme, and quark matter with application to neutron stars. Cross-disciplinary in nature, the book will be of interest to physicists in many different specialties, including condensed matter, nuclear, high-energy, and astrophysics. The emphasis is on novel issues beyond ordinary BCS theory such as pairing in asymmetric systems, the polarization effect, and higher spin pairing. These topics are rarely treated at the textbook level and all of them are the subjects of intensive ongoing research. The book also considers various new techniques widely used in current research that differ significantly from the conventional condensed matter approaches described in the standard literature. Sample Chapter(s). Chapter 1: Color Superconductivity in Dense, but not Asymptotically Dense, Quark Matter (1,976 KB). Contents: Color Superconductivity in Dense, But Not Asymptotically Dense, Quark Matter (M Alford & K Rajagopal); Larkin-Ovchinnikov-Fulde-Ferrell Phases in QCD (G Nardulli); Phase Diagram of Neutral Quark Matter at Moderate Densities (S B Rster et al.); Spontaneous Nambu-Goldstone Current Generation Driven by Mismatch (M Huang); The CFL Phase and m s: An Effective Field Theory Approach (T Schnfer); Nuclear Superconductivity in Compact Stars: BCS Theory and Beyond (A Sedrakian & J W Clark); Pairing Properties of Dressed Nucleons in Infinite Matter (W H Dickhoff & H Mther); Pairing in Higher Angular Momentum States: Spectrum of Solutions of the 3 P 2 - 3 F 2 Pairing Model (M V Zverev et al.); Four-Particle Condensates in Nuclear Systems (G RApke & P Schuck); Realization, Characterization, and Detection of Novel Superfluid Phases with Pairing Between Unbalanced Fermion Species (K Yang); Phase Transition in Unbalanced Fermion Superfluids (H Caldas). Readership: Researchers and graduate students in the areas of condensed matter, nuclear and particle physics."

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 46,7 Mb
Release : 2024-07-02
Category : Electronic
ISBN : 9789814472487

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Physics of Unstable Nuclei by Anonim Pdf

Author : Carlo Di Castro,Roberto Raimondi
Publisher : Cambridge University Press
Page : 549 pages
File Size : 47,6 Mb
Release : 2015-08-27
Category : Science
ISBN : 9781107039407

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Statistical Condensed Matter Physics by Carlo Di Castro,Roberto Raimondi Pdf

An innovative and modular textbook combining established classical topics in statistical mechanics with the latest developments in condensed matter physics.

Author : Anonim
Publisher : Unknown
Page : 1256 pages
File Size : 55,6 Mb
Release : 1973
Category : Nuclear energy
ISBN : UOM:39015026176100

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Nuclear Science Abstracts by Anonim Pdf

Author : Ronald M. Rockmore
Publisher : Unknown
Page : 52 pages
File Size : 40,6 Mb
Release : 1959
Category : Fermions
ISBN : UOM:39015086462838

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Moment of Inertia of Superfluid Many-fermion Systems by Ronald M. Rockmore Pdf

Author : Mohsen Razavy
Publisher : World Scientific
Page : 678 pages
File Size : 45,9 Mb
Release : 2011
Category : Science
ISBN : 9789814304108

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Heisenberg's Quantum Mechanics by Mohsen Razavy Pdf

This book provides a detailed account of quantum theory with a much greater emphasis on the Heisenberg equations of motion and the matrix method. No other texts have come close to discuss quantum theory in terms of depth of coverage. The book features a deeper treatment of the fundamental concepts such as the rules of constructing quantum mechanical operators and the classical-quantal correspondence; the exact and approximate methods based on the Heisenberg equations; the determinantal approach to the scattering theory and the LSZ reduction formalism where the latter method is used to obtain the transition matrix. The uncertainty relations for a number of different observables are derived and discussed. A comprehensive chapter on the quantization of systems with nonlocalized interaction is included. Exact solvable models, and approximate techniques for solution of realistic many-body problems are also considered. The book takes a unified look in the final chapter, examining the question of measurement in quantum theory, with an introduction to the Bell's inequalities.

Author : Kristian Blom
Publisher : Unknown
Page : 0 pages
File Size : 54,8 Mb
Release : 2023
Category : Electronic
ISBN : 3031296133

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Pair-Correlation Effects in Many-Body Systems by Kristian Blom Pdf

The laws of nature encompass the small, the large, the few, and the many. In this book, we are concerned with classical (i.e., not quantum) many-body systems, which refers to any microscopic or macroscopic system that contains a large number of interacting entities. The nearest-neighbor Ising model, originally developed in 1920 by Wilhelm Lenz, forms a cornerstone in our theoretical understanding of collective effects in classical many-body systems and is to date a paradigm for statistical physics. Despite its elegant and simplistic description, exact analytical results in dimensions equal and larger than two are difficult to obtain. Therefore, much work has been done to construct methods that allow for approximate, yet accurate, analytical solutions. One of these methods is the Bethe-Guggenheim approximation, originally developed independently by Hans Bethe and Edward Guggenheim in 1935. This approximation goes beyond the well-known mean field approximation and explicitly accounts for pair correlations between the spins in the Ising model. In this book, we embark on a journey to exploit the full capacity of the Bethe-Guggenheim approximation, in non-uniform and non-equilibrium settings. Throughout we unveil the non-trivial and a priori non-intuitive effects of pair correlations in the classical nearest-neighbor Ising model, which are taken into account in the Bethe-Guggenheim approximation and neglected in the mean field approximation.

Author : Anonim
Publisher : Unknown
Page : 628 pages
File Size : 46,5 Mb
Release : 1972
Category : Nuclear energy
ISBN : PSU:000047759442

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Nuclear Science Abstracts by Anonim Pdf

Author : Thierry Martin,Gilles Montambaux,J. Thanh Van Tran
Publisher : Atlantica Séguier Frontières
Page : 574 pages
File Size : 55,5 Mb
Release : 1996
Category : Condensed matter
ISBN : 286332201X

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Correlated Fermions and Transport in Mesoscopic Systems by Thierry Martin,Gilles Montambaux,J. Thanh Van Tran Pdf

Author : Harry J. Lipkin
Publisher : Courier Corporation
Page : 480 pages
File Size : 53,5 Mb
Release : 2014-08-11
Category : Science
ISBN : 9780486151854

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Quantum Mechanics by Harry J. Lipkin Pdf

Acclaimed as "excellent" (Nature) and "very original and refreshing" (Physics Today), these studies examine the Mössbauer effect, many-body quantum mechanics, scattering theory, Feynman diagrams, and relativistic quantum mechanics. 1973 edition.