Zeroes of the Jones polynomial

F.y Wu and J Wang

Physica A: Statistical Mechanics and its Applications, 2001, vol. 296, issue 3, 483-494

Abstract: We study the distribution of zeroes of the Jones polynomial VK(t) for a knot K. We have computed numerically the roots of the Jones polynomial for all prime knots with N⩽10 crossings, and found the zeroes scattered about the unit circle |t|=1 with the average distance to the circle approaching a nonzero value as N increases. For torus knots of the type (m,n) we show that all zeroes lie on the unit circle with a uniform density in the limit of either m or n→∞, a fact confirmed by our numerical findings. We have also elucidated the relation connecting the Jones polynomial with the Potts model, and used this relation to derive the Jones polynomial for a repeating chain knot with 3n crossings for general n. It is found that zeroes of its Jones polynomial lie on three closed curves centered about the points 1,i and −i. In addition, there are two isolated zeroes located one each near the points t±=e±2πi/3 at a distance of the order of 3−(n+2)/2. Closed-form expressions are deduced for the closed curves in the limit of n→∞.

Date: 2001
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:296:y:2001:i:3:p:483-494

DOI: 10.1016/S0378-4371(01)00189-3

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