output
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 2001 · quant-phShow all

9 papers · 2 filters

quant-ph2001★ 16 cited

Improving quantum interferometry by using entanglement (to take a decision you'd better use entanglement)

G. M. D'Ariano, Matteo G. A Paris, Paolo Perinotti

We address the use of entanglement to improve the precision of generalized quantum interferometry, i.e. of binary measurements aimed to determine whether or not a perturbation has…

quant-ph2001★ 28 cited

Optimal cloning for two pairs of orthogonal states

Dagmar Bruss, Chiara Macchiavello

We study the optimal cloning transformation for two pairs of orthogonal states of two-dimensional quantum systems, and derive the corresponding optimal fidelities.

quant-ph2001★ 3 cited

Magnetic Resonance Force Microscopy Measurement of Entangled Spin States

G. P. Berman, F. Borgonovi, G. Chapline +2

We simulate magnetic resonance force microscopy measurements of an entangled spin state. One of the entangled spins drives the resonant cantilever vibrations, while the other remot…

quant-ph2001★ 21 cited

A quantum measurement of the spin direction

G. M. D'Ariano, P. Lo Presti, M. F. Sacchi

We give a first physical model for the quantum measurement of the spin direction. It is an Arthurs-Kelly model that involves a kind of magnetic-dipole interaction of the spin with…

quant-ph2001★ 286 cited

Using entanglement improves precision of quantum measurements

G. Mauro D'Ariano, Paoloplacido Lo Presti, Matteo G. A. Paris

We show how entanglement can be used to improve the estimation of an unknown transformation. Using entanglement is always of benefit, in improving either the precision or the stabi…

quant-ph2001★ 12 cited

Quantum Measurement of a Single Spin using Magnetic Resonance Force Microscopy

G. P. Berman, F. Borgonovi, G. Chapline +5

Single-spin detection is one of the important challenges facing the development of several new technologies, e.g. single-spin transistors and solid-state quantum computation. Magne…

quant-ph2001★ 439 cited

Optimal eavesdropping in cryptography with three-dimensional quantum states

D. Bruss, C. Macchiavello

We study optimal eavesdropping in quantum cryptography with three-dimensional systems, and show that this scheme is more secure than protocols using two-dimensional states. We gene…

quant-ph2001★ 33 cited

Delocalization border and onset of chaos in a model of quantum computation

G. P. Berman, F. Borgonovi, F. M. Izrailev +1

We study the properties of spectra and eigenfunctions for a chain of spins (qubits) in an external time-dependent magnetic field, and under the conditions of non-selective e…

quant-ph2001★ 13 cited

Optimal quantum estimation of the coupling between two bosonic modes

G. Mauro D'Ariano, Matteo G. A. Paris, Paolo Perinotti

We address the problem of the optimal quantum estimation of the coupling parameter of a bilinear interaction, such as the transmittivity of a beam splitter or the internal phase-sh…