10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Istituto Nazionale di Fisica Nucleare, Sezione di PaviaIT2.8k papers
- European Organization for Nuclear ResearchCH2.1k papers
- The Ohio State UniversityUS2k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2k papers
- National and Kapodistrian University of AthensGR2k papers
- Centre National de la Recherche ScientifiqueFR2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- Sapienza University of RomeIT1.9k papers
- University of PisaIT1.9k papers
- University of BolognaIT1.9k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.8k papers
14 papers · 2 filters
On the entanglement structure in quantum cloning
D. Bruss, C. Macchiavello
We study the entanglement properties of the output state of a universal cloning machine. We analyse in particular bipartite and tripartite entanglement of the clones, and discuss t…
Construction of extremal local positive operator-valued measures under symmetry
S. Virmani, M. B. Plenio
We study the local implementation of POVMs when we require only the faithful reproduction of the statistics of the measurement outcomes for all initial states. We first demonstrate…
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…
Spin tomography
G. M. D'Ariano, L. Maccone, M. Paini
We propose a tomographic reconstruction scheme for spin states. The experimental setup, which is a modification of the Stern-Gerlach scheme, can be easily performed with currently…
The information-theoretical viewpoint on the physical complexity of classical and quantum objects and their dynamical evolution
Gavriel Segre
Charles Bennett's measure of physical complexity for classical objects, namely logical-depth, is used in order to prove that a chaotic classical dynamical system is not physical co…
Experimental detection of entanglement via witness operators and local measurements
O. Guehne, P. Hyllus, D. Bruss +4
In this paper we address the problem of detection of entanglement using only few local measurements when some knowledge about the state is given. The idea is based on an optimized…
Spin network quantum simulator
Annalisa Marzuoli, Mario Rasetti
We propose a general setting for a universal representation of the quantum structure on which quantum information stands, whose dynamical evolution (information manipulation) is ba…
Protocols for entanglement transformations of bipartite pure states
G. M. D'Ariano, M. F. Sacchi
We present a general theoretical framework for both deterministic and probabilistic entanglement transformations of bipartite pure states achieved via local operations and classica…
Relativistic Spontaneous Localization: A Proposal
O. Nicrosini, A. Rimini
A new proposal for a Lorentz-invariant spontaneous localization theory is presented. It is based on the choice of a suitable set of macroscopic quantities to be stochastically indu…
Entanglement at distance: qubits versus continuous variables
G. M. D'Ariano, M. F. Sacchi
We consider the problem of obtaining maximally entangled photon states at distance in the presence of loss. We compare the efficiency of two different schemes in establishing s…
Detection of entanglement with few local measurements
O. Guehne, P. Hyllus, D. Bruss +4
We introduce a general method for the experimental detection of entanglement by performing only few local measurements, assuming some prior knowledge of the density matrix. The ide…
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…
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…
Further results on the cross norm criterion for separability
Oliver Rudolph
In the present paper the cross norm criterion for separability of density matrices is studied. In the first part of the paper we determine the value of the greatest cross norm for…