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
20 papers · 2 filters
Imprinting a complete information about a quantum channel on its output state
Giacomo Mauro D'Ariano, Paoloplacido Lo Presti
We introduce a novel property of bipartite quantum states, which we call "faithfulness", and we say that a state is faithful when acting with a channel on one of the two quantum sy…
Quantum state engineering assisted by entanglement
Matteo G. A. Paris, Mary Cola, Rodolfo Bonifacio
We suggest a general scheme for quantum state engineering based on conditional measurements carried out on entangled twin-beam of radiation. Realistic detection schemes such as {\s…
Macroscopic mechanical oscillators at the quantum limit using optomechanical cooling
David Vitali, Stefano Mancini, Luciano Ribichini +1
We discuss how the optomechanical coupling provided by radiation pressure can be used to cool macroscopic collective degrees of freedom, as vibrational modes of movable mirrors. Co…
Local observables for entanglement witnesses
G. Mauro D'Ariano, Chiara Macchiavello, Matteo G. A. Paris
We present an explicit construction of entanglement witnesses for depolarized states in arbitrary finite dimension. For infinite dimension we generalize the construction to twin-be…
Exploiting quantum parallelism of entanglement for a complete experimental quantum characterization of a single qubit device
Francesco De Martini, Andrea Mazzei, Marco Ricci +1
We present the first full experimental quantum tomographic characterization of a single-qubit device achieved with a single entangled input state. The entangled input state plays t…
Dynamical localization simulated on a few qubits quantum computer
Giuliano Benenti, Giulio Casati, Simone Montangero +1
We show that a quantum computer operating with a small number of qubits can simulate the dynamical localization of classical chaos in a system described by the quantum sawtooth map…
Spin-based quantum information processing with semiconductor quantum dots and cavity QED
Mang Feng, Irene D'Amico, Paolo Zanardi +1
A quantum information processing scheme is proposed with semiconductor quantum dots located in a high-Q single mode QED cavity. The spin degrees of freedom of one excess conduction…
Teleportation improvement by inconclusive photon subtraction
Stefano Olivares, Matteo G. A. Paris, Rodolfo Bonifacio
Inconclusive photon subtraction (IPS) is a conditional measurement scheme to force nonlinear evolution of a given state. In IPS the input state is mixed with the vacuum in a beam s…
On the Heisenberg principle, namely on the information-disturbance trade-off in a quantum measurement
Giacomo Mauro D'Ariano
Common misconceptions on the Heisenberg principle are reviewed, and the original spirit of the principle is reestablished in terms of the trade-off between information retrieved by…
Topological Protection and Quantum Noiseless Subsystems
Paolo Zanardi, Seth Lloyd
Encoding and manipulation of quantum information by means of topological degrees of freedom provides a promising way to achieve natural fault-tolerance that is built-in at the phys…
Semiconductor-based Geometrical Quantum Gates
Paolo Solinas, Paolo Zanardi, Nino Zangh\`ı +1
We propose an implementation scheme for holonomic, i.e., geometrical, quantum information processing based on semiconductor nanostructures. Our quantum hardware consists of coupled…
Interaction of bimodal fields with few-level atoms in cavities and traps
A. Messina, S. Maniscalco, A. Napoli
The spectacular experimental results of the last few years in cavity quantum electrodynamics and trapped ions research has led to very high level laboratory performances. Such a st…
Statistical properties of eigenvalues for an operating quantum computer with static imperfections
G. Benenti, G. Casati, S. Montangero +1
We investigate the transition to quantum chaos, induced by static imperfections, for an operating quantum computer that simulates efficiently a dynamical quantum system, the sawtoo…
''Active'' Teleportation of a Quantum Bit
S. Giacomini, F. Sciarrino, E. Lombardi +1
We report the experimental realization of the ''active'' quantum teleportation (QST) of a one-particle entangled qubit. This demonstration completes the original QST protocol and r…
Improved discrimination of unitaries by entangled probes
G. Mauro D'Ariano, Paoloplacido Lo Presti, Matteo G. A. Paris
We consider the problem of discriminating among a set of unitaries by means of measurements performed on the state undergoing the transformation. We show that use of entangled prob…
Holonomic quantum computation with neutral atoms
A. Recati, T. Calarco, P. Zanardi +2
We propose an all-geometric implementation of quantum computation using neutral atoms in cavity QED. We show how to perform generic single- and two-qubit gates, the latter by encod…
Quantum information processing in bosonic lattices
Radu Ionicioiu, Paolo Zanardi
We consider a class of models of self-interacting bosons hopping on a lattice. We show that properly tailored space-temporal coherent control of the single-body coupling parameters…
Optimized quantum nondemolition measurement of a field quadrature
Matteo G. A. Paris
We suggest an interferometric scheme assisted by squeezing and linear feedback to realize the whole class of field-quadrature quantum nondemolition measurements, from Von Neumann p…
Quantum Imaging
L. A. Lugiato, A. Gatti, E. Brambilla
We provide a brief overview of the newly born field of quantum imaging, and discuss some concepts that lie at the root of this field.
Quantum breaking time near classical equilibrium points
Fabrizio Cametti, Carlo Presilla
By using numerical and semiclassical methods, we evaluate the quantum breaking, or Ehrenfest time for a wave packet localized around classical equilibrium points of autonomous one-…