Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Cardano, Filippo"'
Photonic circuits, optical platforms that connect input and output modes according to a specific map, serve as effective optical processors for both classical and quantum states of light. The number of optical elements typically scales with that of p
Externí odkaz:
http://arxiv.org/abs/2406.08652
The characterization of a unitary gate is experimentally accomplished via Quantum Process Tomography, which combines the outcomes of different projective measurements to reconstruct the underlying operator. The process matrix is typically extracted f
Externí odkaz:
http://arxiv.org/abs/2402.16616
Autor:
Di Colandrea, Francesco, Amato, Lorenzo, Schiattarella, Roberto, Dauphin, Alexandre, Cardano, Filippo
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. Standard approaches to tomographic problems rely on the maximum-likeliho
Externí odkaz:
http://arxiv.org/abs/2210.17288
Autor:
Esposito, Chiara, Barros, Mariana R., Hernández, Andrés Durán, Carvacho, Gonzalo, Di Colandrea, Francesco, Barboza, Raouf, Cardano, Filippo, Spagnolo, Nicolò, Marrucci, Lorenzo, Sciarrino, Fabio
Publikováno v:
npj Quantum Inf 8, 34 (2022)
Quantum walks represent paradigmatic quantum evolutions, enabling powerful applications in the context of topological physics and quantum computation. They have been implemented in diverse photonic architectures, but the realization of a two-particle
Externí odkaz:
http://arxiv.org/abs/2204.09382
Autor:
Di Colandrea, Francesco, Babazadeh, Amin, Dauphin, Alexandre, Massignan, Pietro, Marrucci, Lorenzo, Cardano, Filippo
Publikováno v:
Optica 10, 324 (2023)
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-time evolution of particles across large lattices requires sophisticated
Externí odkaz:
http://arxiv.org/abs/2203.15051
Autor:
Hu, Jinbing, Perroni, Carmine Antonio, De Filippis, Giulio, Zhuang, Songlin, Marrucci, Lorenzo, Cardano, Filippo
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 operator is non-Hermitian even when projected into the subspace of stat
Externí odkaz:
http://arxiv.org/abs/2203.11902
Autor:
Di Colandrea, Francesco, D'Errico, Alessio, Maffei, Maria, Price, Hannah M., Lewenstein, Maciej, Marrucci, Lorenzo, Cardano, Filippo, Dauphin, Alexandre, Massignan, Pietro
Publikováno v:
New J. Phys. 24 (2022) 013028
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:
http://arxiv.org/abs/2106.08837
Autor:
Barboza, Raouf, Babazadeh, Amin, Marrucci, Lorenzo, Cardano, Filippo, de Lisio, Corrado, D'Ambrosio, Vincenzo
Publikováno v:
Nature Communications 13, 1080 (2022)
Accurately measuring mechanical displacements is essential for a vast portion of current technologies. Several optical techniques accomplish this task, allowing for non-contact sensing even below the diffraction limit. Here we introduce an optical en
Externí odkaz:
http://arxiv.org/abs/2106.00832
Autor:
D'Errico, Alessio, Barboza, Raouf, Tudor, Rebeca, Dauphin, Alexandre, Massignan, Pietro, Marrucci, Lorenzo, Cardano, Filippo
Publikováno v:
APL Photonics 6, 020802 (2021)
Quantum walks are processes that model dynamics in coherent systems. Their experimental implementations proved key to unveil novel phenomena in Floquet topological insulators. Here we realize a photonic quantum walk in the presence of a synthetic gau
Externí odkaz:
http://arxiv.org/abs/2011.05893
Autor:
D'Errico, Alessio, Di Colandrea, Francesco, Barboza, Raouf, Dauphin, Alexandre, Lewenstein, Maciej, Massignan, Pietro, Marrucci, Lorenzo, Cardano, Filippo
Publikováno v:
Phys. Rev. Research 2, 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 wavefunction that is conn
Externí odkaz:
http://arxiv.org/abs/2001.05960