436 citations · 2.6k across the 29 of their papers we have counts for
29 papers
Designing interferometers within a single optical beam
Bereneice Sephton, Rakhi Thomas, Carlo Schiano +8
Interferometry provides highly sensitive access to optical phase and is central to much of modern metrology and phase imaging methods. Conventional implementations, however, often…
Programmable non-Hermitian photonic quantum walks via dichroic metasurfaces
Paola Savarese, Sarvesh Bansal, Maria Gorizia Ammendola +6
The evolution of a closed quantum system is described by a unitary operator generated by a Hermitian Hamiltonian. However, when certain degrees of freedom are coupled to an environ…
Electrically tunable liquid-crystal metasurfaces with patterned birefringence and dichroism
Paola Savarese, Sarvesh Bansal, Maria Gorizia Ammendola +7
Light propagation through artificially patterned anisotropic materials, such as dielectric metasurfaces, enables precise control of the spatio-vectorial properties of optical field…
Large-scale free-space photonic circuits in two dimensions
Maria Gorizia Ammendola, Francesco Di Colandrea, Lorenzo Marrucci +1
Photonic circuits, engineered to couple optical modes according to a specific map, serve as processors for classical and quantum light. The number of components typically scales wi…
Roadmap on structured waves
K. Y. Bliokh, E. Karimi, M. J. Padgett +47
Structured waves are ubiquitous for all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave.…
Retrieving space-dependent polarization transformations via near-optimal quantum process tomography
Francesco Di Colandrea, Lorenzo Amato, Roberto Schiattarella +2
An optical waveplate rotating light polarization can be modeled as a single-qubit unitary operator, whose action can be experimentally determined via quantum process tomography. St…
Quantum walks of two correlated photons in a 2D synthetic lattice
Chiara Esposito, Mariana R. Barros, Andrés Durán Hernández +7
Quantum walks represent paradigmatic quantum evolutions, enabling powerful applications in the context of topological physics and quantum computation. They have been implemented in…
Electric polarization and its quantization in one-dimensional non-Hermitian chains
Jinbing Hu, Carmine Antonio Perroni, Giulio De Filippis +3
We generalize the modern theory of electric polarization to the case of one-dimensional non-Hermitian systems with line-gapped spectrum. In these systems, the electronic position o…
Ultra-long quantum walks via spin-orbit photonics
Francesco Di Colandrea, Amin Babazadeh, Alexandre Dauphin +3
The possibility of fine-tuning the couplings between optical modes is a key requirement in photonic circuits for quantum simulations. In these architectures, emulating the long-tim…
Linking topological features of the Hofstadter model to optical diffraction figures
Francesco Di Colandrea, Alessio D'Errico, Maria Maffei +6
In two, three and even four spatial dimensions, the transverse responses experienced by a charged particle on a lattice in a uniform magnetic field are fully controlled by topologi…
Ultra-sensitive measurement of transverse displacements with structured light
Raouf Barboza, Amin Babazadeh, Lorenzo Marrucci +3
Accurately measuring mechanical displacements is essential for a vast portion of current technologies. Several optical techniques accomplish this task, allowing for non-contact sen…
Bloch-Landau-Zener dynamics induced by a synthetic field in a photonic quantum walk
Alessio D'Errico, Raouf Barboza, Rebeca Tudor +4
Quantum walks are processes that model dynamics in coherent systems. Their experimental implementations proved key to unveil novel phenomena in Floquet topological insulators. Here…
Bulk detection of time-dependent topological transitions in quenched chiral models
Alessio D'Errico, Francesco Di Colandrea, Raouf Barboza +5
The topology of one-dimensional chiral systems is captured by the winding number of the Hamiltonian eigenstates. Here we show that this invariant can be read-out by measuring the m…
Two-dimensional topological quantum walks in the momentum space of structured light
Alessio D'Errico, Filippo Cardano, Maria Maffei +7
Quantum walks are powerful tools for quantum applications and for designing topological systems. Although they are simulated in a variety of platforms, genuine two-dimensional real…
Self-healing high-dimensional quantum key distribution using hybrid spin-orbit Bessel states
Isaac Nape, Eileen Otte, Adam Vallés +4
Using spatial modes for quantum key distribution (QKD) has become highly topical due to their infinite dimensionality, promising high information capacity per photon. However, spat…
Continuous-Variable Entangled States of Light carrying Orbital Angular Momentum
A. Pecoraro, F. Cardano, L. Marrucci +1
The orbital angular momentum of light, unlike spin, is an infinite-dimensional discrete variable and may hence offer enhanced performances for encoding, transmitting, and processin…
Topological characterization of chiral models through their long time dynamics
Maria Maffei, Alexandre Dauphin, Filippo Cardano +2
We study chiral models in one spatial dimension, both static and periodically driven. We demonstrate that their topological properties may be read out through the long time limit o…
Measuring the complex orbital angular momentum spectrum and spatial mode decomposition of structured light beams
Alessio D'Errico, Raffaele D'Amelio, Bruno Piccirillo +2
Light beams carrying orbital angular momentum are key resources in modern photonics. In many applications, the ability of measuring the complex spectrum of structured light beams i…
Detection of Zak phases and topological invariants in a chiral quantum walk of twisted photons
F. Cardano, A. D'Errico, A. Dauphin +9
Topological insulators are fascinating states of matter exhibiting protected edge states and robust quantized features in their bulk. Here, we propose and validate experimentally a…
Topological features of vector vortex beams perturbed with uniformly polarized light
Alessio D'Errico, Maria Maffei, Bruno Piccirillo +3
Optical singularities manifesting at the center of vector vortex beams are unstable, since their topological charge is higher than the lowest value permitted by Maxwell's equations…
Entangling one polariton with a photon: effect of interactions on a single-polariton quantum state
Álvaro Cuevas, Blanca Silva, Juan Camilo López Carreño +16
Polaritons are quasi-particles originating from the coupling of light with matter that demonstrated quantum phenomena at the many-particle mesoscopic level, such as BEC and superfl…
Dynamical moments reveal a topological quantum transition in a photonic quantum walk
Filippo Cardano, Maria Maffei, Francesco Massa +6
Many phenomena in solid-state physics can be understood in terms of their topological properties. Recently, controlled protocols of quantum walks are proving to be effective simula…
Quantum walks and wavepacket dynamics on a lattice with twisted photons
Filippo Cardano, Francesco Massa, Hammam Qassim +8
The "quantum walk" has emerged recently as a paradigmatic process for the dynamic simulation of complex quantum systems, entanglement production and quantum computation. Hitherto,…
Hardy's paradox tested in the spin-orbit Hilbert space of single photons
Ebrahim Karimi, Filippo Cardano, Maria Maffei +4
We test experimentally the quantum ``paradox'' proposed by Lucien Hardy in 1993 [Phys. Rev. Lett. 71, 1665 (1993)] by using single photons instead of photon pairs. This is achieved…