95 citations · 210 across the 10 of their papers we have counts for
10 papers
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…
Random Quantum Operations
Wojciech Bruzda, Valerio Cappellini, Hans-Jürgen Sommers +1
We define a natural ensemble of trace preserving, completely positive quantum maps and present algorithms to generate them at random. Spectral properties of the superoperator Phi a…
Random Bistochastic Matrices
V. Cappellini, H. -J. Sommers, W. Bruzda +1
Ensembles of random stochastic and bistochastic matrices are investigated. While all columns of a random stochastic matrix can be chosen independently, the rows and columns of a bi…
Subnormalized states and trace-nonincreasing maps
Valerio Cappellini, Hans-Juergen Sommers, Karol Zyczkowski
We investigate the set of completely positive, trace-nonincreasing linear maps acting on the set M_N of mixed quantum states of size N. Extremal point of this set of maps are chara…
Distribution of G-concurrence of random pure states
Valerio Cappellini, Hans-Juergen Sommers, Karol Zyczkowski
Average entanglement of random pure states of an N x N composite system is analyzed. We compute the average value of the determinant D of the reduced state, which forms an entangle…
Quantum dynamical entropies for discrete classical systems: a comparison
Valerio Cappellini
On a family of classical dynamical systems on the 2-torus, we perform a discretization procedure similar to the Anti-Wick quantization. Such a discretization is performed by using…