627 citations · 6.5k across the 133 of their papers we have counts for
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Applications of the group SU(1,1) for quantum computation and tomography
G. Chiribella, G. M. D'Ariano, P. Perinotti
This paper collects miscellaneous results about the group SU(1,1) that are helpful in applications in quantum optics. Moreover, we derive two new results, the first is about the ap…
Optimal data processing for quantum measurements
Giacomo Mauro D'Ariano, Paolo Perinotti
We consider the general measurement scenario in which the ensemble average of an operator is determined via suitable data-processing of the outcomes of a quantum measurement descri…
Superbroadcasting of harmonic oscillators mixed states
G. M. D'Ariano, P. Perinotti, M. F. Sacchi
We consider the problem of broadcasting quantum information encoded in the displacement parameter for an harmonic oscillator, from N to M>N copies of a thermal state. We show the W…
The Quantum Cocktail Party
G. M. D'Ariano, R. Demkowicz-Dobrzanski, P. Perinotti +1
We consider the problem of decorrelating states of coupled quantum systems. The decorrelation can be seen as separation of quantum signals, in analogy to the classical problem of s…
Superbroadcasting and classical information
G. Chiribella, G. M. D'Ariano, C. Macchiavello +2
We address the problem of broadcasting N copies of a generic qubit state to M>N copies by estimating its direction and preparing a suitable output state according to the outcome of…
Secret quantum communication of a reference frame
Giulio Chiribella, Lorenzo Maccone, Paolo Perinotti
We propose quantum cryptographic protocols to secretly communicate a reference frame- unspeakable information in the sense it cannot be encoded into a string of bits. Two distant p…