Hanqin Ding
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Hanqin Ding has a total of 21 co-authors. Here are the top co-authors by number of shared publications:
Jun Zhang
5 shared publicationsWeiting Chen
5 shared publicationsXin Sun
3 shared publicationsYan Xu
Xinjiang Univ, Xinjiang Key Lab Solid State Phys & Devices, Urumqi 830046, Peoples R China
2 shared publicationsHaibin Cao
Department of Physics, College of Sciences, Shihezi University, Shihezi 832000, China
1 shared publication- Hongyi Li
State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830017 China
1 shared publication
Latest Publications
- 13 October 2026
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters B
Phase transitions in the one-dimensional modified Penson-Kolb model with density-dependent hopping
By relaxing the conventional assumption of the equal one-electron hopping amplitude, we modify the one-dimensional half-filled Penson-Kolb (PK) model to obey the density-dependent hopping (DDH). For positive small modulation parameter [Formula: see text] and pair hopping [Formula: see text], we use bosonization and renormalization-group analysis to determine the ground state phase diagram. In the attractive case([Formula: see text]), the existence of the DDH leads to a gap transition in the spin sector and produces a fully gapless phase where a Luttinger liquid metal phase with dominant triplet superconducting correlations is realized for [Formula: see text], with the charge transition point [Formula: see text] and the spin transition point [Formula: see text]. Besides, there is a Luther-Emery matal phase with dominant singlet-superconducting correlations for [Formula: see text] and a Haldane insulator phase characterized by dominant bond-spin-density-wave correlations for [Formula: see text] in the repulsive regime ([Formula: see text]).
- 13 October 2026
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters B
Phase transitions in the one-dimensional modified Penson-Kolb model with density-dependent hopping
By relaxing the conventional assumption of the equal one-electron hopping amplitude, we modify the one-dimensional half-filled Penson-Kolb (PK) model to obey the density-dependent hopping (DDH). For positive small modulation parameter [Formula: see text] and pair hopping [Formula: see text], we use bosonization and renormalization-group analysis to determine the ground state phase diagram. In the attractive case([Formula: see text]), the existence of the DDH leads to a gap transition in the spin sector and produces a fully gapless phase where a Luttinger liquid metal phase with dominant triplet superconducting correlations is realized for [Formula: see text], with the charge transition point [Formula: see text] and the spin transition point [Formula: see text]. Besides, there is a Luther-Emery matal phase with dominant singlet-superconducting correlations for [Formula: see text] and a Haldane insulator phase characterized by dominant bond-spin-density-wave correlations for [Formula: see text] in the repulsive regime ([Formula: see text]).
- Open Access
- 23 September 2024
- Published by Elsevier in Results in Physics
Phase diagram of the Hubbard chain with symmetric density-dependent hopping
- 23 September 2024
- Published by Elsevier in Results in Physics
Open AccessPhase diagram of the Hubbard chain with symmetric density-dependent hopping
- Open Access
- 23 August 2024
- Published by Elsevier in Results in Physics
- Vol. 64
Ground-state phase diagram of the unconventional Hubbard chain with bond–charge interaction
- 23 August 2024
- Published by Elsevier in Results in Physics
- Vol. 64
Open AccessGround-state phase diagram of the unconventional Hubbard chain with bond–charge interaction
- Open Access
- 24 April 2023
- Published by Elsevier in Results in Physics
- Vol. 49
Ground-state instabilities in a Hubbard-type chain with particular correlated hopping at non-half-filling
- 24 April 2023
- Published by Elsevier in Results in Physics
- Vol. 49
Open AccessGround-state instabilities in a Hubbard-type chain with particular correlated hopping at non-half-filling
- Open Access
- 9 December 2022
- Published by Elsevier in Results in Physics
- Vol. 44
Phase diagram of a generalized Penson–Kolb–Hubbard chain with the occupation-dependent hopping
- 9 December 2022
- Published by Elsevier in Results in Physics
- Vol. 44
Open AccessPhase diagram of a generalized Penson–Kolb–Hubbard chain with the occupation-dependent hopping
- Open Access
- 19 August 2022
- Published by Elsevier in Results in Physics
- Vol. 41
Ground-state properties of the one-dimensional modified Penson–Kolb–Hubbard model
- 19 August 2022
- Published by Elsevier in Results in Physics
- Vol. 41
Open AccessGround-state properties of the one-dimensional modified Penson–Kolb–Hubbard model
- Open Access
- 6 June 2022
- Published by Elsevier in Results in Physics
- Vol. 39
Superconductivity in the extended Hubbard chain with three-electron density interaction
- 6 June 2022
- Published by Elsevier in Results in Physics
- Vol. 39
Open AccessSuperconductivity in the extended Hubbard chain with three-electron density interaction
- Open Access
- 2 February 2022
- Published by Elsevier in Results in Physics
- Vol. 34
Theoretical investigation of four-body interaction in the one-dimensional extended Hubbard model
- 2 February 2022
- Published by Elsevier in Results in Physics
- Vol. 34
Open AccessTheoretical investigation of four-body interaction in the one-dimensional extended Hubbard model
- Open Access
- 24 May 2021
- Published by Springer Nature in Scientific Reports
- Vol. 11 (1) , 1-7
Unequal on-site interaction effects in the one-dimensional electron system at quarter filling
The one-dimensional antiferromagnetic correlated electron system described by the unusual t–U–J model with alternating on-site interactions at odd (\(U_o\)) and even (\(U_e\)) sites is studied analytically. At weak coupling, the use of bosonization and renormalization-group techniques helps to obtain ground-state phase diagram. At quarter filling, the unequal on-site repulsion (\(U_e\ne U_o\)) causes the occurrence of umklapp processes and the generation of a charge excitation gap. Contrary to the usual case (\(U_e=U_o\)), the system is not metallic but insulating. For \(U_e+U_o<2J\), the system is in a spin-gapped phase with charge-density-wave (CDW) instability; for \(U_e+U_o\ge 2J\), the system is in a spin-gapless phase characterized by the coexistence of both CDW and spin-density-wave (SDW) instabilities, where the SDW correlation dominates over the CDW one.- 24 May 2021
- Published by Springer Nature in Scientific Reports
- Vol. 11 (1) , 1-7
Open AccessUnequal on-site interaction effects in the one-dimensional electron system at quarter filling
The one-dimensional antiferromagnetic correlated electron system described by the unusual t–U–J model with alternating on-site interactions at odd (\(U_o\)) and even (\(U_e\)) sites is studied analytically. At weak coupling, the use of bosonization and renormalization-group techniques helps to obtain ground-state phase diagram. At quarter filling, the unequal on-site repulsion (\(U_e\ne U_o\)) causes the occurrence of umklapp processes and the generation of a charge excitation gap. Contrary to the usual case (\(U_e=U_o\)), the system is not metallic but insulating. For \(U_e+U_o<2J\), the system is in a spin-gapped phase with charge-density-wave (CDW) instability; for \(U_e+U_o\ge 2J\), the system is in a spin-gapless phase characterized by the coexistence of both CDW and spin-density-wave (SDW) instabilities, where the SDW correlation dominates over the CDW one. - Open Access
- 24 January 2020
- Published by Royal Society of Chemistry (RSC) in RSC Advances
- Vol. 10 (7) , 4087-4094
Tellurium–oxygen group enhanced birefringence in tellurium phosphates: a first-principles investigation
TeO5groups give main contribution to the very large birefringence of Te2P2O9.
- 24 January 2020
- Published by Royal Society of Chemistry (RSC) in RSC Advances
- Vol. 10 (7) , 4087-4094
Open AccessTellurium–oxygen group enhanced birefringence in tellurium phosphates: a first-principles investigation
TeO5groups give main contribution to the very large birefringence of Te2P2O9.