The Theory of Quantum Liquids: Superfluid Bose Liquids
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The Theory of Quantum Liquids Superfluid Bose Liquids VOLUME II The Theory of Quantum Liquids Superfluid Bose Liquids PHILIPPE NOZIERES' Institut Max Von Laue-Paul Langevin DAVID PINES University of Illinois Advanced Book Program Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Group, an informa business The Theory of Quantum Liquids, Volume ll: Superfluid Bose Liquids First published 1990 by Westview Press Published 2018 by CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 CRC Press is an imprint of the Taylor & Francis Group, an informa business Copyright© 1990 Taylor & Francis Group LLC No claim to original U.S. Government works This book contains information obtained from authentic and highly regarded sources. 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For permission to photocopy or use material electronically from this work, please access www. copyright.com (http://www.copyright.com/) or contact the Copyright Clearance Center, Inc. (CCC), 222 Rosewood Drive, Danvers, MA 01923, 978-750-8400. CCC is a not-for-profit organization that provides licenses and registration for a variety of users. For organizations that have been granted a photocopy license by the CCC, a separate system of payment has been arranged. Trademark Notice: Product or corporate names may be trademarks or registered trademarks, and are used only for identification and explanation without intent to infringe. Visit the Taylor & Francis Web site at http://www. taylorandfrancis.com and the CRC Press Web site at http://www.crcpress.com Library of Congress Cataloging-in-Publication Data Nozieres, P. (Philippe) Theory of quantum liquids. val 2. superfluid bose liquids I Philippe Nozieres and David Pines (Advanced book classics series) Pines' name appears first on val. 1. Includes bibliographies and index. 1. Quantum liquids. I. Pines, David. II. Title. III. Series. QC174.4.N69 1990 530.1'33-dc19 90-24104 ISBN 13: 978-0-201-50063-9 (hbk) ISBN 13: 978-0-201-40841-6 (pbk) This unique image was created with special-effects photography. Photographs ofa broken road, an office building, and a rusted object were superimposed to achieve the effect of a faceted pyramid on a futuristic plain. It originally appeared in a slide show called "Fossils of the Cyborg: From the Ancient to the Future," produced by Synapse Productions, San Francisco. Because this image evokes a fusion of classicism and dynamism, the future and the past, it was chosen as the logo for the Advanced Book Classics series. Publisher's Foreword "Advanced Book Classics" is a reprint series which has come into being as a direct result of public demand for the individual volumes in this program. That was our initial criterion for launching the series. Additional criteria for selection of a book's inclusion in the series include: • Its intrinsic value for the current scholarly buyer. It is not enough for the book to have some historic significance, but rather it must have a timeless quality attached to its content, as well. In a word, "uniqueness." • The book's global appeal. A survey of our international markets revealed that readers of these volumes comprise a boundary less, worldwide audience. • The copyright date and imprint status of the book. Titles in the program are frequently fifteen to twenty years old. Many have gone out of print, some are about to go out of print. Our aim is to sustain the lifespan of these very special volumes. We have devised an attractive design and trim-size for the "ABC" titles, giving the series a striking appearance, while lending the individual titles unifying identity as part of the "Advanced Book· Classics" program. Since "classic" books demand a long-lasting binding, we have made them available in hardcover at an affordable price. We envision them being purchased by individuals for reference and research use, and for personal and public libraries. We also foresee their use as primary and recommended course materials for university level courses in the appropriate subject area. The "Advanced Book Classics" program is not static. Titles will continue to be added to the series in ensuing years as works meet the criteria for inclusion which we've imposed. As the series grows, we naturally anticipate our book buying audience to grow with it. We welcome your support and your suggestions concerning future volumes in the program and invite you to communicate directly with us. vii V.I. Arnold and A. Avez, Ergodic Problems of Classical Mechanics E. Artin and J. Tate, Class Field Theory Michael F. Atiyah, K-Theory David Bohm, The Special Theory ofRelativity P.C. Clemmow and J.P. Dougherty, Electrodynamics of Particles and Plasmas Ronald C. Davidson, Theory ofNonneutral Plasmas P.G. deGennes, Superconductivity of Metals and Alloys Bernard d'Espagnat, Conceptual Foundations ofQuantwn Mechanics, 2nd Edition Richard Feynman, Photon-Hadron Interactions Dieter Forster, Hydrodynamic Fluctuations, Broken Symmetry, and Correlation Functions William Fulton, Algebraic Curves: An Introduction to Algebraic Geometry Kurt Gottfried, Quantum Mechanics Leo Kadanoff and Gordon Baym, Quantum Statistical Mechanics I.M. Khalatnikov, An Introduction to the Theory of Superfluidity George W. Mackey, Unitary Group Representations in Physics, Probability and Number Theory viii A. B. Migdal, Qualitative Methods in Quantum Theory Philippe Nozieres and David Pines, The Theory of Quantum Liquids, Volume II : Superfluid Bose Liquids- new material, 1990 copyright David Pines and Philippe Nozieres, The Theory of Quantum Liquids, Volume 1: Normal Fermi Liquids F. Rohrlich, Classical Charged Particles- Foundations of Their Theory David Ruelle, Statistical Mechanics: Rigorous Results Julian Schwinger, Particles, Source and Fields, Volume I Julian Schwinger, Particles, Sources and Fields, Volume II Julian Schwinger, Particles, Sources and Fields, Volume II/ -new material, 1989 copyright Jean-Pierre Serre, Abelian 1-Adic Representations and Elliptic Curves R.F. Streater and A.S. Wightman, PCT Spin and Statistics and All That Rene Thorn, Structural Stability and Morphogenesis ix Vita Philippe Nozieres Professor of Physics at the College de France, Paris, he studied at the Ecole Nonnale Superieure in Paris and conducted research at Princeton University. Dr. Nozieres has served as a Professor at the University of Paris and at the University of Grenoble. His research is currently based at the Laue Langevin Institute in Grenoble. A member of the Academie des Sciences, he has been awarded theWolfPrize, the Holweck Award of the French Physical Society and the Institute of Physics, and the Gold Medal of the C.N.R.S. Dr. Nozieres' work has been concerned with various facets of the many-body problem, and his work currently focuses on crystal growth and surface physics. David Pines Center for Advanced Study Professor of Physics at the University of Illinois at Urbana Champaign, he has made pioneering contributions to an understanding of many-body problems in condensed matter and nuclear physics, and to theoretical astrophysics. Editor of Addison-Wesley's Frontiers in Physics series and the American Physical Society's Reviews ofModern Physics, Dr. Pines is a member of the National Academy of Sciences and the American Philosophical Society, a Foreign Member of the Academy of Sciences of the U.S.S.R., and is a Fellow of the American Academy of Arts and Sciences and the American Association for the Advancement of Science. Dr. Pines received the Eugene Feenberg Memorial Medal for Contributions to Many-Body Theory in 1985, the P.A.M. Dirac Silver Medal for the Advancement of Theoretical Physics in 1984, and the Friemann Prize in Condensed Matter Physics in 1983. X Special Preface We began writing this book at a time when field theoretical methods in statistical mechanics were expanding rapidly. Our aim was to focus on the physics which lies behind such sophisticated techniques, to describe simple physical facts in a simple language. Hence our deliberate choice of "elementary" methods in explaining such fundamental concepts as elementary excitations, their interactions and collisions, etc .... Rather than elaborating on calculations, we tried to explain qualitative and unifying aspects of an extremely broad and diversified field. Such a limited scope-albeit ambitious-probably explains why our book has retained popularity throughout the years. It is a comforting thought to evolve from a "frontier" level to a "classic" status. We hope it is not only a matter of age! The book was originally organized in two volumes. Volume I dealt with "nor mal" Fermi fluids, i.e., those which display no order of any type. Typical examples are liquid 3He or electron liquids at temperatures above a possible superfluid transition. We discussed at length the nature of elementary excitations, the central concept of response functions, the new features brought about by the long range of Coulomb interactions in charged systems. Volume IT was supposed to deal with superfluid systems, both bosons (4He) and fermions (metallic superconductors); it was never completed. The main reason was a matter of timing. The year, 1965, marked an explosive growth of the work on superconductors, with such new concepts as phase coherence, the Josephson effect, etc.