Time correlations in 1D quantum impurity problems

Details Time correlations in 1D quantum impurity problems Time correlations in 1D quantum impurity problems

1995-12-12

arxiv.org/abs/cond-mat/9512087v1

Physics

Condensed Matter

4 pages, Revtex and 2 figures

Scientific paper

10.1103/PhysRevLett.76.3388

We develop in this letter an analytical approach using form- factors to compute time dependent correlations in integrable quantum impurity problems. As an example, we obtain for the first time the frequency dependent conductivity $G(\omega)$ for the tunneling between the edges in the $\nu=1/3$ fractional quantum Hall effect, and the spectrum $S(w)$ of the spin-spin correlation in the anisotropic Kondo model and equivalently in the double well system of dissipative quantum mechanics, both at vanishing temperature.

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