256 citations · 2.6k across the 81 of their papers we have counts for
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quant-ph1995★ 5 cited
Semiclassical Density Matrix Near the Top of a Barrier
F. J. Weiper, J. Ankerhold, H. Grabert
Employing the path integral approach, we calculate the semiclassical equilibrium density matrix of a particle moving in a nonlinear potential field for coordinates near the top of…
quant-ph1995★ 38 cited
Dissipative Quantum Systems with Potential Barrier. General Theory and Parabolic Barrier
Joachim Ankerhold, Hermann Grabert, Gert-Ludwig Ingold
We study the real time dynamics of a quantum system with potential barrier coupled to a heat-bath environment. Employing the path integral approach an evolution equation for the ti…