65 citations · 65 across the 1 of their papers we have counts for
5 papers
Quantum chaos and random matrix theoryfor fidelity decay in quantum computationswith static imperfections
Klaus M. Frahm, Robert Fleckinger, Dima L. Shepelyansky
We determine the universal law for fidelity decayin quantum computations of complex dynamics in presenceof internal static imperfections in a quantum computer. Our approach is base…
Localization and absence of Breit-Wigner form for Cauchy random band matrices
Klaus M. Frahm
We analytically calculate the local density of states for Cauchy random band matrices with strongly fluctuating diagonal elements. The Breit-Wigner form for ordinary band matrices…
Quantum limit of the laser linewidth in chaotic cavities and statistics of residues of scattering matrix poles
H. Schomerus, K. M. Frahm, M. Patra +1
The quantum-limited linewidth of a laser cavity is enhanced above the Schawlow-Townes value by the Petermann factor K, due to the non-orthogonality of the cavity modes. We derive t…
Large Petermann factor in chaotic cavities with many scattering channels
K. Frahm, H. Schomerus, M. Patra +1
The quantum-limited linewidth of a laser cavity is enhanced above the Schawlow-Townes value by the Petermann factor K, due to the non-orthogonality of the cavity modes. The average…
Distribution of the quantum mechanical time-delay matrix for a chaotic cavity
P. W. Brouwer, K. M. Frahm, C. W. J. Beenakker
We calculate the joint probability distribution of the Wigner-Smith time-delay matrix and the scattering matrix for scattering from a c…