Exact solution of the multiflavor gross-neveu model
The Bethe-ansatz solution is presented for the multiflavor model arising in the Polyakov-Wiegmann fermionization of the SU(2) principal chiral field, i.e. the O(4) σ model. The vacuum and excitations with finite energy and momentum are constructed. The assumption that massive particles of the σ mode...
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| Published in | Physics letters. B Vol. 184; no. 4; pp. 363 - 368 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
05.02.1987
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| Online Access | Get full text |
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| Summary: | The Bethe-ansatz solution is presented for the multiflavor model arising in the Polyakov-Wiegmann fermionization of the SU(2) principal chiral field, i.e. the O(4)
σ model. The vacuum and excitations with finite energy and momentum are constructed. The assumption that massive particles of the
σ model are in the vector representation of O(4) is not corroborated. The renormalization-group β function agrees with a one-charge solution in perturbation theory. |
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| ISSN: | 0370-2693 1873-2445 |
| DOI: | 10.1016/0370-2693(87)90181-X |