Excitons and Cooper Pairs: Two Composite Bosons in Many-Body Physics. Monique Combescot, Shiue-Yuan Shiau

Excitons-and-Cooper-Pairs-Two.pdf
ISBN: 9780198753735 | 480 pages | 12 Mb

• Excitons and Cooper Pairs: Two Composite Bosons in Many-Body Physics
• Monique Combescot, Shiue-Yuan Shiau
• Page: 480
• Format: pdf, ePub, fb2, mobi
• ISBN: 9780198753735
• Publisher: Oxford University Press

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This book bridges a gap between two major communities of Condensed Matter Physics, Semiconductors and Superconductors, that have thrived independently. Using an original perspective that the key particles of these materials, 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 their 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 begin with a 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 in the absence of fermion-fermion interaction - a novel mechanism not visualized by standard Feynman diagrams. Advanced undergraduate or graduate students in physics with no specific background will benefit from this book. The developed concepts and formalism should also be useful for current research on ultracold atomic gases and exciton-polaritons, and quantum information.

Walter V. Pogosov - Publications - ResearchGate
Condensed Matter Physics, Quantum Physics, Solid State Physics. PhD of Bardeen–Cooper–Schrieffer theory to small-sized superconductors: Role of Cooper-pair binding energy Article: Two-Cooper-pair problem and the Pauli exclusion principle Article: Composite boson many-body theory for Frenkel excitons. Bose-Einstein condensation of excitons in bilayer electron - Nature
These 'Cooper pairs' are again composite bosons. is controlled by the underlying fermionic physics, not purely by bosonic quantum mechanics. Indirect excitons in bilayer quantum well systems have two key advantages over bulk generated indirect excitons have uncovered a number of fascinating many -body effects. " Moth-eaten effect" driven by Pauli blocking, revealed for Cooper pairs
two-atom molecules and excitons should allow their de- 2. FIG. 1: Two Cooper pairs cannot interact through the BCS potential given in Eq.(2): this would imply p = k, the 2-free- the composite boson many-body physics are already seen. The BCS-BEC Crossover
of the crossover from the BCS state of Cooper pairs to the Bose–Einstein typical of Coulomb systems like excitons9 where the interactions cannot be easily altered and there is always a two-body bound state, while the latter The physics of pairing in a Fermi gas is best elucidated by consider-. Cooper pair - Wikipedia, the free encyclopedia
In condensed matter physics, a Cooper pair or BCS pair is a pair of electrons (or Electrons have spin-⁄2, so they are fermions, but a Cooper pair is a composite boson The gap appears due to many-body effects between electrons feeling the mechanisms based on other attractive interactions such as electron–exciton  Coherent states of composite bosons
By defining an effective composite boson (coboson) annihilation operator, we derive its physics at all scales ranging from Cooper pair formation electron; semiconductor excitons, which are composed of a lot of attention from entanglement and many-body A composite boson is composed of two distinguishable. Poster of Abstracts
POSTER 1. Title: Strongly-correlated lattice bosons in the superfluid phase: a selfenergy- It is found from a many-body calculation that the gas state becomes Electron-hole attraction leads to formation of excitons atlow density in a two- interaction, which is essentially the scattering between the Cooper pairs and the.

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