Author: Gary Stephen GrestPublisher:
ISBN:
Category :
Languages : en
Pages : 161
Book Description
A Field Theoretic Approach to Elementary Excitations in Superfluid Liquid Helium
Author: Gary Stephen GrestNuclear Science Abstracts
Author: An Introduction To The Theory Of Superfluidity
Author: Isaac M. KhalatnikovPublisher: CRC Press
ISBN: 0429982526
Category : Science
Languages : en
Pages : 163
Book Description
This book covers main properties of the excitation spectrum in superfluid 4He and the thermodynamics determined by the spectrum. It deals with hydrodynamics and describes that quantitative results should be insignificantly modified with processes of phonon decay taken into account.
Introduction to Superfluidity
Author: Andreas SchmittPublisher: Springer
ISBN: 3319079476
Category : Technology & Engineering
Languages : en
Pages : 160
Book Description
Superfluidity – and closely related to it, superconductivity – are very general phenomena that can occur on vastly different energy scales. Their underlying theoretical mechanism of spontaneous symmetry breaking is even more general and applies to a multitude of physical systems. In these lecture notes, a pedagogical introduction to the field-theory approach to superfluidity is presented. The connection to more traditional approaches, often formulated in a different language, is carefully explained in order to provide a consistent picture that is useful for students and researchers in all fields of physics. After introducing the basic concepts, such as the two-fluid model and the Goldstone mode, selected topics of current research are addressed, such as the BCS-BEC crossover and Cooper pairing with mismatched Fermi momenta.
A Theory of Superfluid Helium-four with High Density of Elementary Excitations
Author: Guangda JiPublisher:
ISBN:
Category : Liquid helium
Languages : en
Pages : 102
Book Description
Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 970
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Theory of the Elementary Excitation Spectrum of Superfluid Helium
Author: Javier Solana MadariagaPublisher:
ISBN:
Category : Liquid helium
Languages : en
Pages : 218
Book Description
Elementary Excitations in Quantum Fluids
Author: Kohji OhbayashiPublisher: Springer Science & Business Media
ISBN: 3642834280
Category : Science
Languages : en
Pages : 206
Book Description
This volume is the proceedings of the Hiroshima Symposium on Elementary Excitations in Quantum Fluids, which was held on August 17 and 18, 1987, in Hiroshima, Japan, and was attended by thirty-two scientists from seven countries. Quantum fluids have been the subject of intense study as a consequence of their superfluid properties at very low temperatures. Elementary excitations in them are an important concept about which many important discoveries have been made in recent years. This symposium was arranged by a group of physicists from Hiroshima University to provide an opportunity to discuss these recent developments. It was conceived as a satellite conference of the 18th International Conference on Low Temperature Physics (LT 18), which was held in Kyoto, August 20-26, 1987. Emphasis was placed on the dynamic structures and correlations of ele mentary excitations, which resulted in invited speakers being selected from this field. However, enthusiastic contributors reported notable new results on various other aspects of the elementary excitations, which made the sympo sium lively and successful. It is our great satisfaction to present this volume, which includes papers of good quality and originality. We thank all the parti cipants for their cooperation throughout this symposium, and for preparing their manuscripts within a reasonable time.
The Microscopic Theory of Superfluid He II and with Its QCE Superfluidity Mechanism Applied to Superconductors
Author: J. X. Zheng-JohanssonPublisher: Nova Publishers
ISBN: 9781590339749
Category : Science
Languages : en
Pages : 234
Book Description
The authors introduce the full content of the Microscopic Theory of Superfluid He II, developed since 1998; also given are brief accounts of the application of one concept from the theory, the QCE1 Superfluidity Mechanism, to superconductors. One peer review report writes: "The authors include more of the underlying physics than some earlier theories, and the comparisons they make with experimental data are satisfactory". The Microscopic Theory of Superfluid He II has several important features, which distinguishes this theory from the previous theories of He II. The immense volume of information the authors have today, especially the pieces of information revealing the microscopic dynamics of the system, was not available to the developers of the previous theories in the 1930s-1940s. This book also demonstrates how the general principles of quantum mechanics and condensed matter physics can be consistently applied to a given system with confidence, once a realistic microscopic model is derived for it. It demonstrates in turn the validity of the general physics principles in such an extreme system as the quantum fluid He II.
Author: Daniel R. Bès