Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Solid State Communications

Anomalies in spin of SDW solitons and in charge of CDW solitons in the 1D extended Hubbard model with a bond alternation

Norikazu Tomita, Hideo Fukutome

Published Feb 1, 1992• 6 citations
Publisher
DOI
10.1016/0038-1098(92)90615-g

Related papers

CDW-SDW Transition in the Extended Hubbard Model

Jian Zhong, Kaiyi Zhang, K. A. Chao +2 more

De Gruyter eBooks•Dec 31, 1986•0 citations

Regular density waves in the half filled 1D extended Hubbard model with a bond alternation

Norikazu Tomita, Hideo Fukutome

Solid State Communications•Feb 1, 1992•7 citations

Collective modes of SDW in 1D extended Hubbard model at quarter-filling

Yuh Tomio, Yoshikazu Suzumura

Synthetic Metals•Mar 1, 2003•0 citations

Identification of Extended Hubbard Model SDW-BOW-CDW phase boundaries using Central Charge

Jon Spalding, Shan-Wen Tsai

Bulletin of the American Physical Society•Mar 5, 2018•0 citations

The resonating SDW solitons and breathers in the one-dimensional Hubbard model

Shoji Yamamoto, A. Takahashi, Hideo Fukutome

Synthetic Metals•Jun 1, 1991•3 citations

Elementary Defects, Halfons, Connecting the SDW and CDW in the One Dimensional Extended Hubbard Model

Norikazu Tomita, Hideo Fukutome

We show in the Hartree-Fock approximation that electronic defects which are SDW-CDW domain walls exist in the one dimensional extended Hubbard model of half filling. In the vicinity of the SDW-CDW phase boundary, SDW and CDW polarons and charged solitons split into confined pairs of these defects. They become freely mobile along a chain on the phase boundary. They have ±1/4 spins and ±1/2 charges in an equidistant lattice and are called halfons. Halfon pairs can convert smoothly the SDW and CDW and can be major quantum fluctuations in the SDW-CDW phase transition. In a bond alternated lattice their spins and charges, respectively, deviate from 1/4 and 1/2. On the SDW-CDW phase boundary, there exist new density waves called the mixed density waves (MDW). Halfons are classified by their trajectories connecting the SDW and CDW via the MDW. We derive the counting rules to explain their fractional spins and charges.

Journal of the Physical Society of Japan•May 15, 1993•4 citations
We show in the Hartree-Fock approximation that electronic defects which are SDW-CDW domain walls exist in the one dimensional extended Hubbard model of half filling. In the vicinity of the SDW-CDW phase boundary, SDW and CDW polarons and charged solitons split into confined pairs of these defects. They become freely mobile along a chain on the phase boundary. They have ±1/4 spins and ±1/2 charges in an equidistant lattice and are called halfons. Halfon pairs can convert smoothly the SDW and CDW and can be major quantum fluctuations in the SDW-CDW phase transition. In a bond alternated lattice their spins and charges, respectively, deviate from 1/4 and 1/2. On the SDW-CDW phase boundary, there exist new density waves called the mixed density waves (MDW). Halfons are classified by their trajectories connecting the SDW and CDW via the MDW. We derive the counting rules to explain their fractional spins and charges.