Spectral density of interacting pairs in low-dimensional finite lattices

Spectral density of interacting pairs in low-dimensional finite lattices

The spectral density of bound pairs in ideal 1D, 2D and Bethe lattices is computed for weak and strong interactions. The computations are performed with Green's functions by an efficient recursion method in real space. For the range of interaction strengths within which bound states are predomi...

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Bibliographic Details
Main Author: T. Chattaraj
Format: Article
Language:English
Published: Institute for Condensed Matter Physics 2021-03-01
Series:Condensed Matter Physics
Subjects:
quasiparticles and collective excitations
metal-insulator transitions
doublons
bound states
Online Access:http://www.icmp.lviv.ua/journal/zbirnyk.105/13302/abstract.html
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spelling doaj-86d1aa67224d4bebb7fe4df5bb3b99b32021-03-24T12:59:08ZengInstitute for Condensed Matter PhysicsCondensed Matter Physics1607-324X2224-90792021-03-012411330210.5488/CMP.24.13302Spectral density of interacting pairs in low-dimensional finite latticesT. ChattarajThe spectral density of bound pairs in ideal 1D, 2D and Bethe lattices is computed for weak and strong interactions. The computations are performed with Green's functions by an efficient recursion method in real space. For the range of interaction strengths within which bound states are predominantly single pairs, the spectral profiles guide to the energy bandwidths where the bound pairs can be maximized. http://www.icmp.lviv.ua/journal/zbirnyk.105/13302/abstract.htmlquasiparticles and collective excitationsmetal-insulator transitionsdoublonsbound states
collection DOAJ
language English
format Article
sources DOAJ
author T. Chattaraj
spellingShingle T. Chattaraj
Spectral density of interacting pairs in low-dimensional finite lattices
Condensed Matter Physics
quasiparticles and collective excitations
metal-insulator transitions
doublons
bound states
author_facet T. Chattaraj
author_sort T. Chattaraj
title Spectral density of interacting pairs in low-dimensional finite lattices
title_short Spectral density of interacting pairs in low-dimensional finite lattices
title_full Spectral density of interacting pairs in low-dimensional finite lattices
title_fullStr Spectral density of interacting pairs in low-dimensional finite lattices
title_full_unstemmed Spectral density of interacting pairs in low-dimensional finite lattices
title_sort spectral density of interacting pairs in low-dimensional finite lattices
publisher Institute for Condensed Matter Physics
series Condensed Matter Physics
issn 1607-324X
2224-9079
publishDate 2021-03-01
description The spectral density of bound pairs in ideal 1D, 2D and Bethe lattices is computed for weak and strong interactions. The computations are performed with Green's functions by an efficient recursion method in real space. For the range of interaction strengths within which bound states are predominantly single pairs, the spectral profiles guide to the energy bandwidths where the bound pairs can be maximized.
topic quasiparticles and collective excitations
metal-insulator transitions
doublons
bound states
url http://www.icmp.lviv.ua/journal/zbirnyk.105/13302/abstract.html
work_keys_str_mv AT tchattaraj spectraldensityofinteractingpairsinlowdimensionalfinitelattices
_version_ 1724204755902791680

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