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Unified view of correlations using the square norm distance
Bruno Bellomo, Gian Luca Giorgi, Fernando Galve +3
The distance between a quantum state and its closest state not having a certain property has been used to quantify the amount of correlations corresponding to that property. This a…
Dynamics of correlations due to a phase noisy laser
Bruno Bellomo, Rosario Lo Franco, Erika Andersson +2
We analyze the dynamics of various kinds of correlations present between two initially entangled independent qubits, each one subject to a local phase noisy laser. We give explicit…
Dynamics and extraction of quantum discord in a multipartite open system
B. Bellomo, G. Compagno, R. Lo Franco +2
We consider a multipartite system consisting of two noninteracting qubits each embedded in a single-mode leaky cavity, in turn connected to an external bosonic reservoir. Initially…
Dynamics of geometric and entropic quantifiers of correlations in open quantum systems
Bruno Bellomo, Rosario Lo Franco, Giuseppe Compagno
We extend the Hilbert-Schmidt (square norm) distance, previously used to define the geometric quantum discord, to define also geometric quantifiers of total and classical correlati…