63 citations · 327 across the 21 of their papers we have counts for
21 papers
Two-qubit trace-norm geometric discord: the complete solution
Piotr Lugiewicz, Andrzej Frydryszak, Lech Jakobczyk
We present the complete solution of the problem of determination of trace-norm geometric discord for arbitrary two-qubit state. Final answer is achieved due to effective reduction…
Maximal mutual correlation: an algebraic measure of correlations in bipartite quantum systems
Lech Jakobczyk
We introduce an algebraic measure of correlations in bipartite quantum systems. The proposed quantity, called maximal mutual correlation, provides the information how much a given…
Measurement - induced qudit geometric discord
Piotr Lugiewicz, Andrzej Frydryszak, Lech Jakobczyk
We study the measurement-induced geometric discord based on the trace norm and generalize some properties known for qutrits to qudits. Previous preliminary results for bipartite qu…
Qutrit geometric discord
Lech Jakobczyk, Andrzej Frydryszak, Piotr Lugiewicz
In the paper we study the notion of trace norm geometric discord in the system of two qutrits. We compute this quantity for some class of states including qutrit Bell states, Werne…
Spontaneous emission and quantum discord: comparison of Hilbert-Schmidt and trace distance discord
Lech Jakobczyk
Hilbert - Schmidt and trace norm geometric quantum discord are compared with regard to their behavior during local time evolution. We consider the system of independent two - level…
Spontaneous emission can locally create quantum discord out of classical correlations
M. Gwozdz, L. Jakobczyk
We consider local time evolution given by spontaneous emission in the system of independent two-level atoms. It is shown that all classically correlated initial states are driven i…