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Full Description
This book bridges a gap between two major communities of Condensed Matter Physics, Semiconductors and Superconductors, that have thrived independently. Through an original perspective that their key particles, excitons and Cooper pairs, are composite bosons, the authors raise fundamental questions of current interest: how does the Pauli exclusion principle wield its power on the fermionic components of bosonic particles at a microscopic level and how this affects the macroscopic physics? What can we learn from Wannier and Frenkel excitons and from Cooper pairs that helps us understand "bosonic condensation" of composite bosons and its difference from Bose-Einstein condensation of elementary bosons? The authors start from solid mathematical and physical foundation to derive excitons and Cooper pairs. They further introduce Shiva diagrams as a graphic support to grasp the many-body physics induced by fermion exchange - a novel mechanism not visualized by standard Feynman diagrams. Advanced undergraduate or graduate students in physics with no prior background will benefit from this book. The developed concepts and methodology should also be useful to present researches on ultracold atomic gases, exciton-polaritons, and quantum information.
Contents
PART I: EXCITONS; PART II: COOPER PAIRS; PART III: PARTICLES RELATED TO EXCITONS; PART IV: BOSONIC CONDENSATION; APPENDIX A : SOME MATHEMATICAL RESULTS; APPENDIX B : THE SECOND QUANTIZATION FORMALISM; APPENDIX C : THE HAMILTONIAN FOR WANNIER EXCITONS; APPENDIX D : THE VALENCE ELECTRON OPERATOR VERSUS THE HOLE OPERATOR; APPENDIX E : "THE COBOSON BIBLE"; APPENDIX F : DIRECT COULOMB SCATTERING FOR WANNIER EXCITONS; APPENDIX G : CONCERNING N GROUND-STATE WANNIER EXCITONS; APPENDIX H : PHOTON-SEMICONDUCTOR INTERACTION; APPENDIX I : PHOTON-EXCITON INTERACTION; REFERENCES; INDEX
