EXACT GROUND STATES OF ONE-DIMENSIONAL VALENCE-BOND-SOLID HAMILTONIANS
1987 ◽
Vol 01
(05n06)
◽
pp. 231-237
◽
Keyword(s):
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.
1996 ◽
Vol 84
(5-6)
◽
pp. 1133-1208
◽
2012 ◽
Vol 137
(10)
◽
pp. 104305
◽
Keyword(s):
2018 ◽
Vol 51
(9)
◽
pp. 095302