68 citations · 197 across the 5 of their papers we have counts for
5 papers · 1 filter
Separable Schmidt modes of a non-separable state
Alessio Avella, Marco Gramegna, Alexander Shurupov +3
Two-photon states entangled in continuous variables such as wavevector or frequency represent a powerful resource for quantum information protocols in higher-dimensional Hilbert sp…
Experimental estimation of quantum discord for polarization qubit and the use of fidelity to assess quantum correlations
Claudia Benedetti, Alexander P. Shurupov, Matteo G. A. Paris +2
We address the experimental determination of entropic quantum discord for systems made of a pair of polarization qubits. We compare results from full and partial tomography and fou…
Optimal estimation of entanglement in optical qubit systems
G. Brida, I. P. Degiovanni, A. Florio +5
We address the experimental determination of entanglement for systems made of a pair of polarization qubits. We exploit quantum estimation theory to derive optimal estimators, whic…
Experimental estimation of entanglement at the quantum limit
Giorgio Brida, Ivo Degiovanni, Angela Florio +5
Entanglement is the central resource of quantum information processing and the precise characterization of entangled states is a crucial issue for the development of quantum techno…
Preparation and characterization of arbitrary states of four-dimensional qudits based on biphotons
So-Young Baek, Stanislav S. Straupe, Alexander P. Shurupov +2
We report interferometric schemes to prepare arbitrary states of four-dimensional qudits (ququarts) based on biphoton states of ultrafast-pumped frequency-nondegenerate spontaneous…