Free fermions and the Alexander-Conway polynomial
Free fermions and the Alexander-Conway polynomial
复制标题
自由费米子和亚历山大-康威多项式
DOI:
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发表时间:
1991
期刊:
影响因子:
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通讯作者:
H. Saleur
中科院分区:
文献类型:
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作者:
L. Kauffman;H. Saleur
AbstractWe show how the Conway Alexander polynomial arises from theq deformation of (Z2 graded)sl(n, n) algebras. In the simplestsl(1, 1) case we then establish connection between classical knot theory and its modern versions based on quantum groups. We first shown how the crystal and the fundamental group of the complement of a knot give rise naturally to the Burau representation of the braid group. The Burau matrix is then transformed into theUqsl(1, 1) R matrix by going to the exterior power algebra. Using a det=str identity, this allows us to recover the state model of [K2, 89] as well. We also show how theUq>
sl(1, 1) algebra describes free fermions “propagating” on the knot diagram. We rewrite the Conway Alexander polynomial as a Berezin integral, and thus as an apparently new determinant.