10.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT156 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT146 papers
- University of InsubriaIT88 papers
- University of MilanIT85 papers
- University of TrentoIT85 papers
- Politecnico di TorinoIT78 papers
- University of FlorenceIT74 papers
- University of GenoaIT69 papers
- Centre National de la Recherche ScientifiqueFR65 papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT65 papers
- National Research CouncilLK58 papers
- University of SalernoIT56 papers
19 papers · 2 filters
Information-Disturbance Tradeoff in Quantum State Discrimination
Francesco Buscemi, Massimiliano F. Sacchi
When discriminating between two pure quantum states, there exists a quantitative tradeoff between the information retrieved by the measurement and the disturbance caused on the unk…
Entanglement of electrons in interacting molecules
Tina A. C. Maiolo, Fabio Della Sala, Luigi Martina +1
Quantum entanglement is a concept commonly used with reference to the existence of certain correlations in quantum systems that have no classical interpretation. It is a useful res…
Information-disturbance tradeoff for spin coherent state estimation
Massimiliano F. Sacchi
We show how to quantify the optimal tradeoff between the amount of information retrieved by a quantum measurement in estimating an unknown spin coherent state and the disturbance o…
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…
Complete and Deterministic discrimination of polarization Bell state assisted by momentum entanglement
M. Barbieri, G. Vallone, P. Mataloni +1
A complete and deterministic Bell state measurement was realized by a simple linear optics experimental scheme which adopts 2-photon polarization-momentum hyperentanglement. The sc…
Optical state engineering, quantum communication, and robustness of entanglement promiscuity in three-mode Gaussian states
Gerardo Adesso, Alessio Serafini, Fabrizio Illuminati
We present a novel, detailed study on the usefulness of three-mode Gaussian states states for realistic processing of continuous-variable quantum information, with a particular emp…
Enhancing the Violation of the Einstein-Podolsky-Rosen Local Realism by Quantum Hyper-entanglement
Marco Barbieri, Francesco De Martini, Paolo Mataloni +2
Mermin's observation [Phys. Rev. Lett. {\bf 65}, 1838 (1990)] that the magnitude of the violation of local realism, defined as the ratio between the quantum prediction and the clas…
Classical and quantum q-deformed physical systems
A. Lavagno, A. M. Scarfone, P. Narayana Swamy
On the basis of the non-commutative q-calculus, we investigate a q-deformation of the classical Poisson bracket in order to formulate a generalized q-deformed dynamics in the class…
The Generalized Lyapunov Theorem and its Application to Quantum Channels
Daniel Burgarth, Vittorio Giovannetti
We give a simple and physically intuitive necessary and sufficient condition for a map acting on a compact metric space to be mixing (i.e. infinitely many applications of the map t…
Regimes of stability of accelerator modes
Rebecca Hihinashvili, Tali Oliker, Yaniv S. Avizrats +3
The phase diagram of a simple area-preserving map, which was motivated by the quantum dynamics of cold atoms, is explored analytically and numerically. Periodic orbits of a given w…
Ghost imaging with intense fields from chaotically-seeded parametric downconversion
E. Puddu, A. Andreoni, I. P. Degiovanni +2
We present the first experimental demonstration of ghost imaging realized with intense beams generated by a parametric downconversion interaction seeded with pseudo-thermal light.…
3D phase-matching conditions for the generation of entangled triplets by chi(2) interlinked interactions
Maria Bondani, Alessia Allevi, Eleonora Gevinti +2
An analytical calculation of the interaction geometry of two interlinked second-order nonlinear processes fulfilling phase-matching conditions is presented. The method is developed…
On the statistics of quantum expectations for systems in thermal equilibrium
Giovanni Jona-Lasinio, Carlo Presilla
The recent remarkable developments in quantum optics, mesoscopic and cold atom physics have given reality to wave functions. It is then interesting to explore the consequences of a…
Extremal covariant measurements
G. Chiribella, G. M. D'Ariano
We characterize the extremal points of the convex set of quantum measurements that are covariant under a finite-dimensional projective representation of a compact group, with actio…
Superbroadcasting of conjugate quantum variables
Giacomo M. D'Ariano, Paolo Perinotti, Massimiliano F. Sacchi
We consider the problem of broadcasting arbitrary states of radiation modes from N to M>N copies by a map that preserves the average value of the field and optimally reduces the to…
Measuring the photon distribution by ON/OFF photodectors
M. Genovese, M. Gramegna, G. Brida +5
Reconstruction of photon statistics of optical states provide fundamental information on the nature of any optical field and find various relevant applications. Nevertheless, no de…
Optimal estimation of squeezing
G. Chiribella, G. M. D'Ariano, M. F. Sacchi
We present the optimal estimation of an unknown squeezing transformation of the radiation field. The optimal estimation is unbiased and is obtained by properly considering the dege…
Superbroadcasting of continuous variables mixed states
Giacomo M. D'Ariano, Paolo Perinotti, Massimiliano F. Sacchi
We consider the problem of broadcasting quantum information encoded in the average value of the field from N to M>N copies of mixed states of radiation modes. We derive the broadca…