Néel order in the ground state of Heisenberg antiferromagnetic chains with long-range interactions

1997 ◽  
Vol 30 (4) ◽  
pp. 1095-1100 ◽  
Author(s):  
J Rodrigo Parreira ◽  
O Bolina ◽  
J Fernando Perez
2015 ◽  
Vol 142 (21) ◽  
pp. 214303 ◽  
Author(s):  
R. Vexiau ◽  
M. Lepers ◽  
M. Aymar ◽  
N. Bouloufa-Maafa ◽  
O. Dulieu

2020 ◽  
Vol 152 (12) ◽  
pp. 124304
Author(s):  
H. Yang ◽  
M.-S. Wu ◽  
L.-Y. Tang ◽  
M. W. J. Bromley ◽  
K. Varga ◽  
...  

2021 ◽  
Vol 10 (5) ◽  
Author(s):  
Luhang Yang ◽  
Adrian Feiguin

We study the nature of the excitations of an antiferromagnetic (AFM) Heisenberg chain with staggered long range interactions using the time-dependent density matrix renormalization group method and by means of a multi-spinon approximation. The chain undergoes true symmetry breaking and develops long range order, transitioning from a gapless spin liquid to a gapless ordered AFM phase. The spin dynamic structure factor shows that the emergence of Néel order can be associated to the formation of bound states of spinons that become coherent magnons. The quasiparticle band leaks out from the two-spinon continuum that is pushed up to higher energies. Our physical picture is also supported by an analysis of the behavior of the excitations in real-time.


2013 ◽  
Vol 88 (4) ◽  
Author(s):  
J.-Y. Zhang ◽  
Y. Qian ◽  
Z.-C. Yan ◽  
U. Schwingenschlögl

Sign in / Sign up

Export Citation Format

Share Document