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The large N limit of the O(N) Heisenberg spin system in two dimensions |
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| Authors: | Arunabha Guha B. Sakita |
| Affiliation: | Department of Physics, The City College, CUNY, New York, NY 10031, USA |
| Abstract: | The large N limit of the O(N) Heisenberg spin system in two dimensions (a lattice version of the non-linear σ-model) is analysed by the collective field technique. A compact expression for the mass gap and the β-function is obtained for arbitrary but fixed gN. The strong and weak coupling limits of this expression correctly reproduce the known results. |
| Keywords: | PLUTO Collaboration |
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