Strong-Coupling Theory of High-Temperature Superconductivity

Alexandre S. Alexandrov

• Publisher: Cambridge University Press
• Year: 2013
• Print ISBN: 9781107018556
• eBook ISBN: 9781107352452
• Topic: Ciencias físicas
• Subtopic: Física

High-temperature superconductivity has transformed the landscape of solid state science, leading to the discovery of new classes of materials, states of matter, and concepts. However, despite being over a quarter of a century since its discovery, there is still no single accepted theory to explain its origin. This book presents one approach, the strong-coupling or bipolaron theory, which proposes that high-temperature superconductivity originates from competing Coulomb and electron-phonon interactions. The author provides a thorough overview of the theory, describing numerous experimental observations, and giving detailed mathematical derivations of key theoretical findings at an accessible level. Applications of the theory to existing high-temperature superconductors are discussed, as well as possibilities of liquid superconductors and higher critical temperatures. Alternative theories are also examined to provide a balanced and informative perspective. This monograph will appeal to advanced researchers and academics in the fields of condensed matter physics and quantum-field theories.

Table of contents

• Contents
• Preface
• 1 Coulomb and Frohlich interactions
• 2 Small polarons
• 3 Inverse-coupling expansion technique
• 4 High-temperature superconductivity
• 5 Converting boson--fermion mixtures
• 6 Superconductivity from repulsion: Theoretical constraints
• 7 Theory and experiment: Confirmed predictions
• 8 Experiments explained: Normal state
• 9 Experiments explained: Superconducting state
• 10 Further predictions
• References
• Index