A New Approach to the Spin 1/2 Quantum Heisenberg Model
Abstract
An evolution equation for the expectation values of the Boltzmann factor between monomer valence bond states is derived. It contains the whole information on the thermodynamical and magnetic properties of the spin $\frac{1}{2}$ quantum Heisenberg model. A new approximation scheme is proposed and studied in the thermodynamical limit.
 Publication:

arXiv eprints
 Pub Date:
 March 1993
 arXiv:
 arXiv:condmat/9303039
 Bibcode:
 1993cond.mat..3039M
 Keywords:

 Condensed Matter
 EPrint:
 14pages (revtex), WU B 9311