The vacuum expectation values of Wilson line operators $<W(L)>$ in the Chern-Simons theory are computed to second order of perturbation theory. The meaning of the framing procedure for knots is analyzed in the context of the Chern-Simons field theory. The relation between $<W(L)>$ and the link invariant polynomials is discussed. We derive an explicit analytic expression for the second coefficient of the Alexander-Conway polynomial, which is related to the ARF and Casson invariants. We present also some new relations between the HOMFLY coefficients.
|Autori:||GUADAGNINI E; MARTELLINI M; MINTCHEV M|
|Titolo:||Wilson lines in Chern-Simons theory and link invariants|
|Anno del prodotto:||1990|
|Digital Object Identifier (DOI):||10.1016/0550-3213(90)90124-V|
|Appare nelle tipologie:||1.1 Articolo in rivista|