Introduction to superfluidity : field-theoretical approach and applications / Andreas Schmitt.Material type: TextSeries: Lecture notes in physics: v. 888.Publisher: Cham : Springer, Copyright date: ©2015Description: 1 online resource (viii, 155 pages) : illustrations (some color)Content type: text Media type: computer Carrier type: online resourceISBN: 9783319079479; 3319079476Subject(s): Superfluidity | Superconductivity | Atomic & molecular physics | Quantum physics (quantum mechanics & quantum field theory) | Semi-conductors & super-conductors | Science -- Quantum Theory | Technology & Engineering -- Superconductors & Superconductivity | Superconductivity | Superfluidity | quantumfysica | quantum physics | fysica | physics | geleidingsvermogen | conductivity | Physics (General) | Fysica (algemeen)Genre/Form: Electronic books. DDC classification: 530.4/2 LOC classification: QC175.4Online resources: Click here to access online
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Includes bibliographical references.
Online resource; title from PDF title page (SpringerLink, viewed July 30, 2014).
Introduction -- Superfluid Helium -- Superfluidity in Quantum Field Theory -- Relativistic Two-Fluid Formalism -- Fermionic Superfluidity: Cooper Pairing -- Meissner Effect in a Superconductor -- BCS-BEC Crossover -- Low-Energy Exitations in a Fermionic Superfluid -- Cooper-Pairing with Mismatched Fermi Momenta -- References.
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.