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- Thomas. Gorin, Heiner Kohler, Tomaz Prosen, Thomas H. Seligman, H J Stöckmann, Marko Znidaric
- Physical review letters
- 2006

Symmetries as well as other special conditions can cause anomalous slowing down of fidelity decay. These situations will be characterized, and a family of random matrix models to emulate them… (More)

- Rudi Schäfer, H J Stöckmann, Thomas. Gorin, Thomas H. Seligman
- Physical review letters
- 2005

The scattering matrix was measured for a flat microwave cavity with classically chaotic dynamics. The system can be perturbed by small changes of the geometry. We define the "scattering fidelity" in… (More)

- Thomas. Gorin, Thomas H. Seligman, R. L. Weaver
- Physical review. E, Statistical, nonlinear, and…
- 2006

The recent introduction of the concept of scattering fidelity causes us to revisit the experiment by Lobkis and Weaver [Phys. Rev. Lett. 90, 254302 (2003)]. There, the "distortion" of the coda of an… (More)

We propose to study echo dynamics in a random matrix framework, where we assume that the perturbation is time independent, random and orthogonally invariant. This allows to use a basis in which the… (More)

We propose an atom optics experiment to measure the stability of the quantum kicked rotor under perturbations of the Hamiltonian. We avail ourselves of the theory of Loschmidt echoes, i.e., we… (More)

Fidelity serves as a benchmark for the relieability in quantum information processes, and has recently atracted much interest as a measure of the susceptibility of dynamics to perturbations. A rich… (More)

The concept of fidelity decay is discussed from the point of view of the scattering matrix, and the scattering fidelity is introduced as the parametric cross-correlation of a given S-matrix element,… (More)

We study the exact evolution of two non-interacting qubits, initially in a Bell state, in the presence of an environment, modeled by a kicked Ising spin chain. Dynamics of this model range from… (More)

In rotating scattering systems, the generic saddle-center scenario leads to stable islands in phase space. Non-interacting particles whose initial conditions are defined in such islands will be… (More)

- H. Hernández-Saldaña, J. Zamorano Flores, Thomas H. Seligman
- Physical review. E, Statistical physics, plasmas…
- 1999

Semi-Poisson statistics are shown to be obtained by removing every other number from a random sequence. Retaining every (r+1)th level we obtain a family of sequences, which we call daisy models.… (More)