R. M. Kashaev conjectured that the asymptotic behavior of the link invariant he introduced,
which equals the colored Jones polynomial evaluated at a root of unity, determines the hyperbolic volume of any hyperbolic link complement. We observe numerically that for knots {\small $6_3$, $8_9$ and $8_{20}$} and for the Whitehead link, the colored Jones polynomials are related to the hyperbolic volumes and the Chern--Simons invariants and propose a complexification of Kashaev's conjecture.
@article{1057777432,
author = {Murakami, Hitoshi and Murakami, Jun and Okamoto, Miyuki and Takata, Toshie and Yokota, Yoshiyuki},
title = {Kashaev's Conjecture and the Chern-Simons Invariants of Knots and Links},
journal = {Experiment. Math.},
volume = {11},
number = {3},
year = {2002},
pages = { 427-435},
language = {en},
url = {http://dml.mathdoc.fr/item/1057777432}
}
Murakami, Hitoshi; Murakami, Jun; Okamoto, Miyuki; Takata, Toshie; Yokota, Yoshiyuki. Kashaev's Conjecture and the Chern-Simons Invariants of Knots and Links. Experiment. Math., Tome 11 (2002) no. 3, pp. 427-435. http://gdmltest.u-ga.fr/item/1057777432/