Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Alessio D'Errico"'
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-8 (2024)
Abstract Recent years have seen a surge in research on the role of quantum geometry in condensed matter physics. For instance, the Aharonov-Bohm effect is a physical phenomenon where the vector potential induces a phase shift of electron wavepackets
Externí odkaz:
https://doaj.org/article/8197e64d492c4cf8bb8a59e04c615e41
Publikováno v:
npj Quantum Information, Vol 10, Iss 1, Pp 1-7 (2024)
Abstract The characterization of a quantum device is a crucial step in the development of quantum experiments. This is accomplished via Quantum Process Tomography, which combines the outcomes of different projective measurements to deliver a possible
Externí odkaz:
https://doaj.org/article/aca0d1c092fd436195e14818104f576e
Publikováno v:
APL Photonics, Vol 9, Iss 5, Pp 056112-056112-9 (2024)
Nematic liquid-crystal devices are a powerful tool to structure light in different degrees of freedom, both in classical and in quantum regimes. Most of these devices exploit the possibility of introducing a position-dependent phase retardation eithe
Externí odkaz:
https://doaj.org/article/8cc9e528be054bc3949ae9837403e609
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-8 (2023)
Abstract Optical knots and links are nontrivial three-dimensional topologies consisting of trajectories of phase or polarisation singularities. They are theoretically predicted and experimentally observed in paraxial and nonparaxial regimes and in ra
Externí odkaz:
https://doaj.org/article/945de427ed0646a2922fd1ec2a81eb62
Autor:
Hugo Larocque, Alessio D’Errico, Manuel F. Ferrer-Garcia, Avishy Carmi, Eliahu Cohen, Ebrahim Karimi
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Beam shaping methods can generate optical fields with nontrivial topologies, which are invariant against perturbations and thus interesting for information encoding. Here, the authors introduce the realization of framed optical knots to encode progra
Externí odkaz:
https://doaj.org/article/e2d1cd7604714993aacbe911fb6db875
Autor:
Alessio D’Errico, Raouf Barboza, Rebeca Tudor, Alexandre Dauphin, Pietro Massignan, Lorenzo Marrucci, Filippo Cardano
Publikováno v:
APL Photonics, Vol 6, Iss 2, Pp 020802-020802-9 (2021)
Quantum walks are processes that model dynamics in coherent systems. Their experimental implementations proved to be key to unveiling novel phenomena in Floquet topological insulators. Here, we realize a photonic quantum walk in the presence of a syn
Externí odkaz:
https://doaj.org/article/c51b36670ccd4116b3924dfd8c16892d
Autor:
Francesco Di Colandrea, Alessio D’Errico, Maria Maffei, Hannah M Price, Maciej Lewenstein, Lorenzo Marrucci, Filippo Cardano, Alexandre Dauphin, Pietro Massignan
Publikováno v:
New Journal of Physics, Vol 24, Iss 1, p 013028 (2022)
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 topological invariants called Chern numbers, which characterize the energy ban
Externí odkaz:
https://doaj.org/article/c2eb1af0f28f42dcba5d9a2633899128
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033226 (2021)
The polarization of a monochromatic optical beam lies in a plane and, in general, is described by an ellipse, known as the polarization ellipse. The polarization ellipse in the tight-focusing (nonparaxial) regime forms nontrivial three-dimensional to
Externí odkaz:
https://doaj.org/article/9a6f11dd6fa24d919353d7186aafe490
Autor:
Filippo Cardano, Alessio D’Errico, Alexandre Dauphin, Maria Maffei, Bruno Piccirillo, Corrado de Lisio, Giulio De Filippis, Vittorio Cataudella, Enrico Santamato, Lorenzo Marrucci, Maciej Lewenstein, Pietro Massignan
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
The detection of topological invariants in the bulk remains challenging even in state-of-the-art experiments. Here, Cardanoet al. propose a method to read-out the Zak phases and topological invariants in one-dimensional chiral systems and detect thos
Externí odkaz:
https://doaj.org/article/bdac267972ce47718a26bf7ad163b51c
Autor:
Alessio D'Errico, Francesco Di Colandrea, Raouf Barboza, Alexandre Dauphin, Maciej Lewenstein, Pietro Massignan, Lorenzo Marrucci, Filippo Cardano
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023119 (2020)
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 mean chiral displacement of a single-particle wave function that is con
Externí odkaz:
https://doaj.org/article/b5346eaf61c9484fa476e1107e6328e7