EXACT GROUND STATES OF ONE-DIMENSIONAL VALENCE-BOND-SOLID HAMILTONIANS

摘要: 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 spin-1 chains. structure these states is rather simple one. For closed chain we find unique state; open fourfold-degenerate state. state correlation function ring calculated.