486 citations · 4k across the 54 of their papers we have counts for
54 papers
Distributions of Off-Diagonal Scattering Matrix Elements: Exact Results
André Nock, Santosh Kumar, Hans-Jürgen Sommers +1
Scattering is a ubiquitous phenomenon which is observed in a variety of physical systems which span a wide range of length scales. The scattering matrix is the key quantity which p…
Distribution of Scattering Matrix Elements in Quantum Chaotic Scattering
Santosh Kumar, André Nock, Hans-Jürgen Sommers +5
Scattering is an important phenomenon which is observed in systems ranging from the micro- to macroscale. In the context of nuclear reaction theory the Heidelberg approach was prop…
Induced Ginibre ensemble of random matrices and quantum operations
J. Fischmann, W. Bruzda, B. A. Khoruzhenko +2
A generalisation of the Ginibre ensemble of non-Hermitian random square matrices is introduced. The corresponding probability measure is induced by the ensemble of rectangular Gaus…
Truncations of Random Orthogonal Matrices
Boris A. Khoruzhenko, Hans-Juergen Sommers, Karol Zyczkowski
Statistical properties of non--symmetric real random matrices of size , obtained as truncations of random orthogonal matrices are investigated. We derive an exact fo…
Universality of spectra for interacting quantum chaotic systems
Wojciech Bruzda, Marek Smaczynski, Valerio Cappellini +2
We analyze a model quantum dynamical system subjected to periodic interaction with an environment, which can describe quantum measurements. Under the condition of strong classical…
Exact Fidelity and Full Fidelity Statistics in Regular and Chaotic Surroundings
Heiner Kohler, Hans-Juergen Sommers, Sven Aberg +1
For a prepared state exact expressions for the time dependent mean fidelity as well as for the mean inverse paricipation ratio are obtained analytically. The distribution function…