Schmitt Introduction to Superfluidity

Field-theoretical Approach and Applications
2015
ISBN: 978-3-319-07947-9
Verlag: Springer International Publishing
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, Band 888, 155 Seiten, eBook

Reihe: Lecture Notes in Physics

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.

Zielgruppe

Graduate

Autoren/Hrsg.

Schmitt, Andreas

Inhaltsverzeichnis

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.