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19912026
most citedAdvances in Quantum Metrology

3.9k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2005 · quant-phShow all

10 papers · 2 filters

quant-ph2005★ 14 cited

Arnol'd Tongues and Quantum Accelerator Modes

Italo Guarneri, Laura Rebuzzini, Shmuel Fishman

The stable periodic orbits of an area-preserving map on the 2-torus, which is formally a variant of the Standard Map, have been shown to explain the quantum accelerator modes that…

quant-ph2005★ 23 cited

Extremal quantum cloning machines

G. Chiribella, G. M. D'Ariano, P. Perinotti +1

We investigate the problem of cloning a set of states that is invariant under the action of an irreducible group representation. We then characterize the cloners that are "extremal…

quant-ph2005★ 1 cited

Using Quantum Mechanics to Cope with Liars

Stefano Mancini, Lorenzo Maccone

We propose the use of a quantum algorithm to deal with the problem of searching with errors in the framework of two-person games. Specifically, we present a solution to the Ulam's…

quant-ph2005★ 19 cited

Experimental demonstration of time coding quantum key distribution

William Boucher, Thierry Debuisschert

Time coding quantum key distribution with coherent faint pulses is experimentally demonstrated. A measured 3.3 % quantum bit error rate and a relative contrast loss of 8.4 % allow…

quant-ph2005★ 19 cited

Reduced randomness in quantum cryptography with sequences of qubits encoded in the same basis

L. -P. Lamoureux, H. Bechmann-Pasquinucci, N. J. Cerf +2

We consider the cloning of sequences of qubits prepared in the states used in the BB84 or 6-state quantum cryptography protocol, and show that the single-qubit fidelity is unaffect…

quant-ph2005★ 51 cited

Superbroadcasting of mixed states

Giacomo Mauro D'Ariano, Chiara Macchiavello, Paolo Perinotti

We derive the optimal universal broadcasting for mixed states of qubits. We show that the nobroadcasting theorem cannot be generalized to more than a single input copy. Moreover, f…

quant-ph2005★ 17 cited

Robustness of a quantum key distribution with two and three mutually unbiased bases

Filippo Caruso, Helle Bechmann-Pasquinucci, Chiara Macchiavello

We study the robustness of various protocols for quantum key distribution. We first consider the case of qutrits and study quantum protocols that employ two and three mutually unbi…

quant-ph2005★ 95 cited

Clean Positive Operator Valued Measures

F. Buscemi, G. M. D'Ariano, M. Keyl +2

In quantum mechanics the statistics of the outcomes of a measuring apparatus is described by a positive operator valued measure (POVM). A quantum channel transforms POVM's into POV…

quant-ph2005★ 74 cited

Inverting quantum decoherence by classical feedback from the environment

Francesco Buscemi, Giulio Chiribella, Giacomo Mauro D'Ariano

We show that for qubits and qutrits it is always possible to perfectly recover quantum coherence by performing a measurement only on the environment, whereas for dimension d>3 ther…

quant-ph2005★ 71 cited

Quantum entanglement enhances the capacity of bosonic channels with memory

Nicolas J. Cerf, Julien Clavareau, Chiara Macchiavello +1

The bosonic quantum channels have recently attracted a growing interest, motivated by the hope that they open a tractable approach to the generally hard problem of evaluating quant…