Some of my old research papers:
 

Classical and Quantum Chaos for a Kicked Top
F. Haake, M. Kus, and R. Scharf
Z. Phys. B. 65, 381-395 (1987) pdf

Kramers' Degeneracy and Quartic Level Repulsion
R. Scharf, B. Dietz, M. Kus, F. Haake and M. V. Berry
Europhys. Lett. 5, 383-389 (1988) pdf

Kicked rotator for a spin-1/2 particle
R. Scharf
J. Phys. A 22, 4223-4242 (1989) pdf

Scaling behavior of localization in quantum chaos
G. Casati, I. Guarneri, F. Izrailev, and R. Scharf
Phys. Rev. Lett. 64, 5 - 8 (1990) pdf

Properties of the nonlinear Schrödinger equation on a lattice
Rainer Scharf and A. R. Bishop
Phys. Rev. A 43, 6535-6544 (1991) pdf

Sine-Gordon kink-antikink generation on spatially periodic potentials
Rainer Scharf, Yuri S. Kivshar, Angel Sánchez, and Alan R. Bishop
Phys. Rev. A 45, R5369-R5372 (1992) pdf

Length-scale competition for the one-dimensional nonlinear Schrödinger equation with spatially periodic potentials
Rainer Scharf and A. R. Bishop
Phys. Rev. E 47, 1375-1383 (1993) pdf

Soliton Chaos and Lengthscale Competition in Nonlinear Dynamics
Rainer Scharf
Chaos, Solitons & Fractals 5, 2527-2549 (1995) pdf

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