scholarly journals Electronic phase transitions in a one-dimensional spinless fermion model with competing interactions

1997 ◽  
Vol 56 (20) ◽  
pp. 12939-12946 ◽  
Author(s):  
A. K. Zhuravlev ◽  
M. I. Katsnelson ◽  
A. V. Trefilov
Keyword(s):  
Phase Transitions ◽  
Competing Interactions ◽  
Fermion Model ◽  
One Dimensional ◽  
Spinless Fermion ◽  
Electronic Phase

QUANTUM PHASE TRANSITIONS AND ENTANGLEMENT IN J1–J2 MODEL

2004 ◽  
Vol 15 (08) ◽  
pp. 1095-1103 ◽  
Author(s):  
RECEP ERYIĞIT ◽  
RESUL ERYIĞIT ◽  
YIĞIT GÜNDÜÇ
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Phase Transitions ◽  
Ground State ◽  
Abrupt Change ◽  
Quantum Phase Transitions ◽  
Nearest Neighbors ◽  
Competing Interactions ◽  
One Dimensional ◽  
Transition Points

We study ground state pairwise entanglement within one-dimensional spin-1/2 antiferromagnetic J1–J2 model with competing interactions. Contrary to some claims we found that frustration does not increase entanglement. Concurrence of nearest and next nearest neighbors are found to show abrupt change at phase transition points. We also show that the concurrence can be used to classify the phase diagram of the model in anisotropy–frustration plane.

scholarly journals Quantum phase transitions in a quasi-one-dimensional Ising quantum magnet in transverse fields

2021 ◽  
Vol 103 (14) ◽  
Author(s):  
Xiaowen Zhang ◽  
Zheng He ◽  
Yiqing Hao ◽  
Yao Shen ◽  
Shoudong Shen ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
One Dimensional ◽  
Quantum Magnet ◽  
Transverse Fields

Structural and electronic phase transitions in Sr1−xCexMnO3 perovskites

2008 ◽  
Vol 181 (10) ◽  
pp. 2639-2645 ◽  
Author(s):  
Brendan J. Kennedy ◽  
Paul J. Saines ◽  
Qingdi Zhou ◽  
Zhaoming Zhang ◽  
Motohide Matsuda ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Electronic Phase
Sign in / Sign up

Export Citation Format

Share Document