scholarly journals Valence bond ground states in isotropic quantum antiferromagnets

1988 ◽  
Vol 115 (3) ◽  
pp. 477-528 ◽  
Author(s):  
Ian Affleck ◽  
Tom Kennedy ◽  
Elliott H. Lieb ◽  
Hal Tasaki
Author(s):  
Ian Affleck ◽  
Tom Kennedy ◽  
Elliott H. Lieb ◽  
Hal Tasaki

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Rebecca W. Smaha ◽  
Wei He ◽  
Jack Mingde Jiang ◽  
Jiajia Wen ◽  
Yi-Fan Jiang ◽  
...  

1987 ◽  
Vol 01 (05n06) ◽  
pp. 231-237 ◽  
Author(s):  
P.L. Iske ◽  
W.J. Caspers

The ground state(s) of a Hamiltonian, introduced by Affleck, Kennedy, Lieb and Tasaki, in connection with the Valence-Bond-Solid (VBS) states, are explicitly given for the spin-1 chains. The structure of these ground states is a rather simple one. For a closed chain we find a unique ground state; for the open chain we find a fourfold-degenerate ground state. The ground state correlation function for the ring is calculated.


1994 ◽  
Vol 08 (25n26) ◽  
pp. 3645-3654 ◽  
Author(s):  
M.T. BATCHELOR ◽  
C.M. YUNG

Quantum spin chains with exact valence-bond ground states are of great interest in condensed-matter physics. A class of such models was proposed by Affleck et al., each of which is su(2)-invariant and constructed as a sum of projectors onto definite total spin states at neighboring sites. We propose to use the machinery of the q-deformation of su(2) to obtain generalisations of such models, and work out explicitly the two simplest examples. In one case we recover the known anisotropic spin-1 VBS model while in the other we obtain a new anisotropic generalisation of the spin-½ Majumdar-Ghosh model.


Sign in / Sign up

Export Citation Format

Share Document