256 citations · 2.6k across the 81 of their papers we have counts for
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Exact time evolution and master equations for the damped harmonic oscillator
Robert Karrlein, Hermann Grabert
Using the exact path integral solution for the damped harmonic oscillator it is shown that in general there does not exist an exact dissipative Liouville operator describing the dy…
Voltage-biased quantum wire with impurities
Reinhold Egger, Hermann Grabert
The bosonization technique to describe correlated electrons in a one-dimensional quantum wire containing impurities is extended to include an applied voltage source. The external r…
Friedel oscillations in Luttinger liquids
Reinhold Egger, Hermann Grabert
We study the density disturbance of a correlated 1D electron liquid in the presence of a scatterer or a barrier. The 2k_F-periodic density profile away from the barrier (Friedel os…
Exact and Semiclassical Density Matrix of a Particle Moving in a Barrier Potential with Bound States
Franz Josef Weiper, Joachim Ankerhold, Hermann Grabert
We present a barrier potential with bound states that is exactly solvable and determine the eigenfunctions and eigenvalues of the Hamiltonian. The equilibrium density matrix of a p…