Classification of quantum data is essential for quantum machine learning and near-term
quantum technologies. In this paper, we propose a new hybrid quantum-classical framework …

The roles of quantum correlations, entanglement, discord, and dissonance needed for
performing unambiguous quantum state discrimination assisted by an auxiliary system are …

Quantum teleportation of qudits is revisited. In particular, we analyze the case where the
quantum channel corresponds to a nonmaximally entangled state and show that the …

We found a scheme for teleporting probabilistically an unknown pure state with optimal
probability and without losing the information of the state to be teleported. Accordingly …

We study the procedure for sequential unambiguous state discrimination. A qubit is
prepared in one of two possible states and measured by two observers Bob and Charlie …

We study entanglement swap** through nonmaximally entangled states. The combination
of the standard protocol with an optimal scheme for quantum state discrimination leads to a …

We present a general scheme to realize the POVMs for the unambiguous discrimination of
quantum states. For any set of pure states it enables us to set up a feasible linear optical …

The sequential unambiguous state discrimination (SSD) of two states prepared in arbitrary
prior probabilities is studied and compared with three strategies that allow classical …

We find the allowed complex overlaps for N equidistant pure quantum states. The accessible
overlaps define a petal-shaped area on the Argand plane. Each point inside the petal …

Major advances in the precision of magnetic measurements bring us closer to quantum
detection of individual spins at the single-atom level. On the quest for reducing both classical …