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19912026
most citedAdvances in Quantum Metrology

3.9k citations

Showing 2012 · quant-phShow all

11 papers · 2 filters

quant-ph2012★ 2 cited

Universality of Computation in Real Quantum Theory

Alessio Belenchia, Giacomo Mauro D'Ariano, Paolo Perinotti

Recently de La Torre et al. [1] reconstructed Quantum Theory from its local structure on the basis of local discriminability and the existence of a one-parameter group of bipartite…

quant-ph2012★ 29 cited

A simple proof of Bell's inequality

Lorenzo Maccone

Bell's theorem is a fundamental result in quantum mechanics: it discriminates between quantum mechanics and all theories where probabilities in measurement results arise from the i…

quant-ph2012★ 14 cited

Quantum Cloning by Cellular Automata

G. M. D'Ariano, C. Macchiavello, M. Rossi

We introduce a quantum cellular automaton that achieves approximate phase-covariant cloning of qubits. The automaton is optimized for 1-to-2N economical cloning. The use of the aut…

quant-ph2012★ 80 cited

Quantum Field as a quantum cellular automaton: the Dirac free evolution in one dimension

Alessandro Bisio, Giacomo Mauro D'Ariano, Alessandro Tosini

We present a quantum cellular automaton model in one space-dimension which has the Dirac equation as emergent. This model, a discrete-time and causal unitary evolution of a lattice…

quant-ph2012★ 175 cited

Quantum Hypergraph States

M. Rossi, M. Huber, D. Bruß +1

We introduce a class of multiqubit quantum states which generalizes graph states. These states correspond to an underlying mathematical hypergraph, i.e. a graph where edges connect…

quant-ph2012★ 50 cited

Quantum Theory, namely the pure and reversible theory of information

G. Chiribella, G. M. D'Ariano, P. Perinotti

After more than a century since its birth, Quantum Theory still eludes our understanding. If asked to describe it, we have to resort to abstract and ad hoc principles about complex…

quant-ph2012★ 90 cited

Ergodic and Mixing Quantum Channels in Finite Dimensions

Daniel Burgarth, Giulio Chiribella, Vittorio Giovannetti +2

The paper provides a systematic characterization of quantum ergodic and mixing channels in finite dimensions and a discussion of their structural properties. In particular, we disc…

quant-ph2012★ 24 cited

Quantum channel detection

C. Macchiavello, M. Rossi

We present a method to detect properties of quantum channels, assuming that some a priori information about the form of the channel is available. The method is based on a correspon…

quant-ph2012★ 177 cited

The completeness of quantum theory for predicting measurement outcomes

Roger Colbeck, Renato Renner

The predictions that quantum theory makes about the outcomes of measurements are generally probabilistic. This has raised the question whether quantum theory can be considered comp…

quant-ph2012★ 15 cited

Experimental achievement of the entanglement assisted capacity for the depolarizing channel

Andrea Chiuri, Sandro Giacomini, Chiara Macchiavello +1

We experimentally demonstrate the achievement of the entanglement assisted capacity for classical information transmission over a depolarizing channel. The implementation is based…

quant-ph2012★ 37 cited

Scale invariance of entanglement dynamics in Grover's quantum search algorithm

M. Rossi, D. Bruß, C. Macchiavello

We calculate the amount of entanglement of the multiqubit quantum states employed in the Grover algorithm, by following its dynamics at each step of the computation. We show that g…