Introduction to Superfluidity - Field-theoretic Approach and Applications

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.

Table des matières

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.

Résumé

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.

Détails du produit

• Auteurs: Andreas Schmitt
• Edition: Springer, Berlin
• Langues: Anglais
• Format d'édition: Livre de poche
• Sortie: 26.05.2014
• EAN: 9783319079462
• ISBN: 978-3-31-907946-2
• Pages: 155
• Dimensions: 154 mm x 236 mm x 10 mm
• Poids: 266 g
• Illustrations: VIII, 155 p. 26 illus., 11 illus. in color.
• Thèmes: Lecture Notes in Physics; Lecture Notes in Physics
• Catégories: Sciences naturelles, médecine, informatique, technique > Technique > Machines, ingénierie; B, Quantum Physics, Quantum physics (quantum mechanics & quantum field theory), Physics and Astronomy, Atomic & molecular physics, Strongly Correlated Systems, Superconductivity, Superconductivity, Superconductors, Condensed materials, Phase transformations (Statistical physics), Quantum Gases and Condensates