1 citations · 2 across the 6 of their papers we have counts for
6 papers
On correlations and mutual entropy in quantum composed systems
Yuji Hirota, Dariusz Chruściński, Takashi Matsuoka +1
We study the correlations of classical and quantum systems from the information theoretical points of view. We analyze a simple measure of correlations based on entropy (such measu…
On classical and quantum liftings
L. Accardi, D. Chruściński, A. Kossakowski +2
We analyze the procedure of lifting in classical stochastic and quantum systems. It enables one to `lift' a state of a system into a state of `system+reservoir'. This procedure is…
A class of Bell diagonal states and entanglement witnesses
D. Chruscinski, A. Kossakowski, K. Mlodawski +1
We analyze special class of bipartite states - so called Bell diagonal states. In particular we provide new examples of bound entangled Bell diagonal states and construct the class…
Characterization of PPT states and measures of entanglement
W. A. Majewski, T. Matsuoka, M. Ohya
A detailed characterization of PPT states, both in the Heisenberg and in the Schrödinger picture, is given. Measures of entanglement are defined and discussed in details. Illustrat…
The generalized Lefschetz number of homeomorphisms on punctured disks
Takashi Matsuoka
We compute the generalized Lefschetz number of orientation-preserving self-homeomorphisms of a compact punctured disk, using the fact that homotopy classes of these homeomorphisms…
New approach to Epsilon-entropy and Its comparison with Kolmogorov's Epsilon-entropy
Kei Inoue, Takashi Matsuoka, Masanori Ohya
Kolmogorov introduced a concept of Epsilon-entropy to analyze information in classical continuous system. The fractal dimension of geometrical sets was introduced by Mandelbrot as…