Band structure of local pairs. Mathematical tools
S. G. Rubin
TL;DR
This paper investigates the band structure of local pairs in strongly interacting fermion systems, revealing new boson modes due to intersite interactions and discussing pair interactions with external fields.
Contribution
It introduces a mathematical framework for analyzing singlet and triplet pair states and explores the effects of intersite interactions on excitation spectra and boson mode emergence.
Findings
Intersite fermion interactions lead to new boson modes.
Analysis applicable to different pairing symmetries like d-wave.
Insights into pair interactions with external fields.
Abstract
A system of strongly interacting fermions in a solid state is discussed. A structure of singlet and triplet coupled 2-particle states and their excitation spectra are investigated. It is shown that an account of intersite fermion interaction leads to new boson modes. A problem of interaction of pairs with external fields are discussed. The same analysis can be performed for another sorts of pairings like d-wave.
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Taxonomy
TopicsQuasicrystal Structures and Properties · Photonic Crystals and Applications · Mesoporous Materials and Catalysis