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math-ph2009★ 1 cited
Spectral averaging techniques for Jacobi matrices with matrix entries
Christian Sadel, Hermann Schulz-Baldes
A Jacobi matrix with matrix entries is a self-adjoint block tridiagonal matrix with invertible blocks on the off-diagonals. Averaging over boundary conditions leads to explicit for…
math-ph2009★ 26 cited
Random Dirac operators with time-reversal symmetry
Christian Sadel, Hermann Schulz-Baldes
Quasi-one-dimensional stochastic Dirac operators with an odd number of channels, time reversal symmetry but otherwise efficiently coupled randomness are shown to have one conductin…