A New Approach to the Spin 1/2 Quantum Heisenberg Model

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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.
14pages (revtex), WU B 93-11

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/147449

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9303039
 http://arxiv.org/abs/cond-mat/9303039

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arXiv