168 citations · 1.6k across the 55 of their papers we have counts for
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On the use of superthermal light for imaging applications
Silvia Cassina, Gabriele Cenedese, Marco Lamperti +2
Ghost imaging and differential ghost imaging are well-known imaging techniques based on the use of both classical and quantum correlated states of light. Since the existence of cor…
Speckled-speckle field as a resource for imaging techniques
Silvia Cassina, Gabriele Cenedese, Alessia Allevi +1
Correlated states of light, both classical and quantum, can find useful applications in the implementation of several imaging techniques. Among the employed sources, pseudo-thermal…
Generation of Pseudo-Random Quantum States on Actual Quantum Processors
Gabriele Cenedese, Maria Bondani, Dario Rosa +1
The generation of a large amount of entanglement is a necessary condition for a quantum computer to achieve quantum advantage. In this paper, we propose a method to efficiently gen…
Correcting Coherent Errors by Random Operation on Actual Quantum Hardware
Gabriele Cenedese, Giuliano Benenti, Maria Bondani
Characterizing and mitigating errors in current noisy intermediate-scale devices is important to improve performance of next generations of quantum hardware. In order to investigat…
Effect of noisy channels on the transmission of mesoscopic twin-beam states
Alessia Allevi, Maria Bondani
Quantum properties of light, which are crucial resources for Quantum Technologies, are quite fragile in nature and can be degraded and even concealed by the environment. We show, b…
Dynamical localization simulated on actual quantum hardware
Andrea Pizzamiglio, Su Yeon Chang, Maria Bondani +3
Quantum computers are invaluable tools to explore the properties of complex quantum systems. We show that dynamical localization of the quantum sawtooth map, a highly sensitive qua…
Waves in intensity coherence of evolving intense twin beams
Radek Machulka, Jan Perina, Ondrej Haderka +2
Strong correlations between the signal and idler beams imprinted during their generation dominantly determine the properties of twin beams. They are also responsible for the waves…
Autocorrelation functions: a useful tool for both state and detector characterisation
Giovanni Chesi, Alessia Allevi, Maria Bondani
The calculation of autocorrelation functions represents a routinely used tool to characterise quantum states of light. In this paper, we evaluate the function for detecte…
Optimizing Silicon photomultipliers for Quantum Optics
Giovanni Chesi, Luca Malinverno, Alessia Allevi +4
Silicon Photomultipliers are potentially ideal detectors for Quantum Optics and Quantum Information studies based on mesoscopic states of light. However, their non-idealities hampe…
Measuring nonclassicality with Silicon photomultipliers
Giovanni Chesi, Luca Malinverno, Alessia Allevi +3
Detector stochastic deviations from an ideal response can hamper the measurement of quantum properties of light especially in the mesoscopic regime where photon-number resolution i…
Homodyne tomography with homodyne-like detection
Stefano Olivares, Alessia Allevi, Giovanni Caiazzo +2
We show that data from homodyne-like detection based on photon-number-resolving (PNR) detectors may be effectively exploited to reconstruct quantum states of light using the tomogr…
Entanglement and nonclassicality in four-mode Gaussian states generated via parametric down-conversion and frequency up-conversion
Ievgen I. Arkhipov, Jan Peřina, Ondřej Haderka +2
Multipartite entanglement and nonclassicality of four-mode Gaussian states generated in two simultaneous nonlinear processes involving parametric down-conversion and frequency up-c…
Homodyne-like detection for state-discrimination in the presence of phase noise
Matteo Bina, Alessia Allevi, Maria Bondani +1
We propose an innovative strategy to discriminate between two coherent states affected by either uniform or gaussian phase noise. The strategy is based on a homodyne-like detection…
Real-time phase-reference monitoring of a quasi-optimal coherent-state receiver
Matteo Bina, Alessia Allevi, Maria Bondani +1
The Kennedy-like receiver is a quasi-optimal receiver employed in binary phase-shift-keyed communication schemes with coherent states. It is based on the interference of the two si…
Luminescence-induced noise in single photon sources based on BBO crystals
Radek Machulka, Karel Lemr, Ondřej Haderka +3
Single-photon sources based on the process of spontaneous parametric down-conversion play a key role in various applied disciplines of quantum optics. We characterize intrinsic lum…
Spatial properties of twin-beam correlations at low- to high-intensity transition
Radek Machulka, Ondrej Haderka, Jan Perina +3
It is shown that spatial correlation functions measured for correlated photon pairs at the single-photon level correspond to speckle patterns visible at high intensities. This corr…
Coherence properties of high-gain twin beams generated in pump-depletion regime
Alessia Allevi, Ottavia Jedrkiewicz, Enrico Brambilla +4
Twin-beam coherence properties are analyzed both in the spatial and spectral domains at high-gain regime including pump depletion. The increase of the size of intensity auto- and c…
Bracket states for communication protocols with coherent states
Alessia Allevi, Stefano Olivares, Maria Bondani
We present the generation and characterization of the class of bracket states, namely phase-sensitive mixtures of coherent states exhibiting symmetry properties in the phase-space…
Absolute calibration of photon-number-resolving detectors with an analog output using twin beams
Jan Perina, Ondrej Haderka, Alessia Allevi +1
A method for absolute calibration of a photon-number resolving detector producing analog signals as the output is developed using a twin beam. The method gives both analog-to-digit…
Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity
Stefano Olivares, Alessia Allevi, Maria Bondani
Multiple photon subtraction applied to a displaced phase-averaged coherent state, which is a non-Gaussian classical state, produces conditional states with a non trivial (positive)…
Characterizing the non-classicality of mesoscopic optical twin-beam states
Alessia Allevi, Marco Lamperti, Maria Bondani +4
We present a robust tool to analyze nonclassical properties of multimode twin-beam states in the mesoscopic photon-number domain. The measurements are performed by direct detection…
Optimal sub-Poissonian light generation from twin beams by photon-number resolving detectors
Marco Lamperti, Alessia Allevi, Maria Bondani +4
We generate nonclassical conditional states by exploiting the quantum correlations of multi-mode twin-beam states endowed with a sizeable number of photons. A strong relation betwe…
Characterization of phase-averaged coherent states
Alessia Allevi, Maria Bondani, Paulina Marian +2
We present the full characterization of phase-randomized or phase-averaged coherent states, a class of states exploited in communication channels and in decoy state-based quantum k…
Experimental quantification of non-Gaussianity of phase-randomized coherent states
Alessia Allevi, Stefano Olivares, Maria Bondani
We present the experimental investigation of the non-Gaussian nature of some mixtures of Fock states by reconstructing their Wigner function and exploiting two recently introduced…