activity
19952023
most citedGaussian quantum discord

493 citations · 12.2k across the 287 of their papers we have counts for

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Showing 2014 · quant-phShow all

15 papers · 2 filters

quant-ph2014★ 5 cited

Soft-metric based channel decoding for photon counting receivers

Marina Mondin, Fred Daneshgaran, Inam Bari +3

We address photon-number-assisted, polarization- based, binary communication systems equipped with photon counting receivers. In these channels information is encoded in the value…

quant-ph2014★ 33 cited

Two-step procedure to discriminate discordant from classical correlated or factorized states

Simone Cialdi, Andrea Smirne, Matteo G. A. Paris +2

We devise and experimentally realize a procedure capable of detecting and distinguishing quantum discord and classical correlations as well the presence of factorized states in a j…

quant-ph2014★ 35 cited

Collapse and revival of quantum coherence for a harmonic oscillator interacting with a classical fluctuating environment

Jacopo Trapani, Matteo Bina, Sabrina Maniscalco +1

We address the dynamics of nonclassicality for a quantum system interacting with a noisy fluctuating environment described by a classical stochastic field. As a paradigmatic exampl…

quant-ph2014★ 58 cited

Engineering decoherence for two-qubit systems interacting with a classical environment

Matteo Rossi, Claudia Benedetti, Matteo G. A. Paris

We address the dynamics of a two-qubit system interacting with a classical dephasing environment driven by a Gaussian stochastic process. Upon introducing the concept of entangleme…

quant-ph2014

Quantum limits to estimation of photon deformation

Giovanni De Cillis, Matteo G. A. Paris

We address potential deviations of radiation field from the bosonic behaviour and employ local quantum estimation theory to evaluate the ultimate bounds to precision in the estimat…

quant-ph2014

Probing qubit by qubit: properties of the POVM and the information/disturbance tradeoff

Carlo Sparaciari, Matteo G. A. Paris

We address the class of positive operator-valued measures (POVMs) for qubit systems that are obtained by coupling the signal qubit with a probe qubit and then performing a projecti…

quant-ph2014★ 76 cited

Characterization of classical Gaussian processes using quantum probes

Claudia Benedetti, Matteo G. A. Paris

We address the use of a single qubit as a quantum probe to characterize the properties of classical noise. In particular, we focus on the characterization of classical noise arisin…

quant-ph2014★ 138 cited

Quantum metrology in Lipkin-Meshkov-Glick critical systems

Giulio Salvatori, Antonio Mandarino, Matteo G. A. Paris

The Lipkin-Meshkov-Glick (LMG) model describes critical systems with interaction beyond the first-neighbor approximation. Here we address the characterization of LMG systems, i.e.…

quant-ph2014★ 18 cited

Quantifying the nonlinearity of a quantum oscillator

Matteo G. A. Paris, Marco G. Genoni, Nathan Shammah +1

We address the quantification of nonlinearity for quantum oscillators and introduce two measures based on the properties of the ground state rather than on the form of the potentia…

quant-ph2014★ 27 cited

Effective dephasing for a qubit interacting with a transverse classical field

Claudia Benedetti, Matteo G. A. Paris

We address the dynamics of a qubit interacting with a quasi static random classical field having both a longitudinal and a transverse component and described by a Gaussian stochast…

quant-ph2014★ 65 cited

Quantum non-Gaussianity witnesses in the phase space

Catherine Hughes, Marco G. Genoni, Tommaso Tufarelli +2

We address detection of quantum non-Gaussian states, i.e. nonclassical states that cannot be expressed as a convex mixture of Gaussian states, and present a method to derive a new…

quant-ph2014★ 1 cited

The data aggregation problem in quantum hypothesis testing

Simone Cialdi, Matteo G. A. Paris

We discuss the implications of quantum-classical Yule-Simpson effect for quantum hypothesis testing in the presence of noise, and provide an experimental demonstration of its occur…

quant-ph2014★ 39 cited

Quantifying the source of enhancement in experimental continuous variable quantum illumination

Sammy Ragy, Ivano Ruo Berchera, Ivo P. Degiovanni +4

A quantum illumination protocol exploits correlated light beams to enhance the probability of detection of a partially reflecting object lying in a very noisy background. Recently…

quant-ph2014

About the use of fidelity in continuous variable systems

Antonio Mandarino, Matteo Bina, Stefano Olivares +1

We present examples of continuous variable (CV) states having high fidelity to a given target, say or , and still showing striking differences in their physical…

quant-ph2014★ 24 cited

Quantum probes for fractional Gaussian processes

Matteo G. A. Paris

We address the characterization of classical fractional random noise via quantum probes. In particular, we focus on estimation and discrimination problems involving the fractal dim…