Physics – Condensed Matter
Scientific paper
1993-01-11
Phys.Rev.Lett. 70 (1993) 1904-1907
Physics
Condensed Matter
10 pages, RevteX, P-92-09-113
Scientific paper
10.1103/PhysRevLett.70.1904
The conformal invariant character of $\nu$-multicomponent integrable systems (with $\nu$ branches of gapless excitations) is described from the point of view of the response to curvature of the two-dimensional space. The $\nu\times\nu$ elements of the dressed charge matrix are shown to be transition matrix elements of the zero ($\mu =0$) components of the diagonal generators of $\nu$ independent Kac-Moody algebras (Cartan currents). The dynamical decoupling which occurs in these systems is characterized in terms of the conductivities associated with the $\mu = 1$ components of the Cartan currents.
Carmelo Jose. M. P.
Castro Neto Antonio H.
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