Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Cuevas, Álvaro"'
Entangled photon sources (EPSs) are pivotal in advancing quantum communication, computing and sensing. The demand for deploying efficient, robust EPSs in the field, characterized by exceptional (phase) stability, has become increasingly apparent. Thi
Externí odkaz:
http://arxiv.org/abs/2407.03806
Autor:
Cuevas, Álvaro, Tiemann, Daniel, Camphausen, Robin, Cusini, Iris, Panzani, Antonio, Mukherjee, Rajdeep, Villa, Federica, Pruneri, Valerio
Advances in optical imaging always look for an increase in sensitivity and resolution among other practicability aspects. Within the same scope, in this work we report a versatile interference contrast imaging technique, capable of sub-nm sample-thic
Externí odkaz:
http://arxiv.org/abs/2306.17542
Autor:
Camphausen, Robin, Cuevas, Álvaro, Duempelmann, Luc, Terborg, Roland A., Wajs, Ewelina, Tisa, Simone, Ruggeri, Alessandro, Cusini, Iris, Steinlechner, Fabian, Pruneri, Valerio
Publikováno v:
Science Advances 7 (2021) eabj2155
Quantum techniques can be used to enhance the signal-to-noise ratio in optical imaging. Leveraging the latest advances in single photon avalanche diode array cameras and multi-photon detection techniques, here we introduce a super-sensitive phase ima
Externí odkaz:
http://arxiv.org/abs/2105.11394
Autor:
Ciampini, Mario A., Cuevas, Álvaro, Mataloni, Paolo, Macchiavello, Chiara, Sacchi, Massimiliano F.
Publikováno v:
Phys. Rev. A 103, 062414 (2021)
We show an experimental procedure to certify the classical capacity for noisy qubit channels. The method makes use of a fixed bipartite entangled state, where the system qubit is sent to the channel input and the set of local measurements $\sigma_{x}
Externí odkaz:
http://arxiv.org/abs/2011.08749
Autor:
Geraldi, Andrea, Laneve, Alessandro, Bonavena, Luis Diego, Sansoni, Linda, Ferraz, Jose, Fratalocchi, Andrea, Sciarrino, Fabio, Cuevas, Alvaro, Mataloni, Paolo
Publikováno v:
Phys. Rev. Lett. 123, 140501 (2019)
Many disordered systems show a superdiffusive dynamics, intermediate between the diffusive one, typical of a classical stochastic process, and the so called ballistic behaviour, which is generally expected for the spreading in a quantum process. We h
Externí odkaz:
http://arxiv.org/abs/1907.11446
A novel bulk optics scheme for quantum walks is presented. It consists of a one-dimensional lattice built on two concatenated displaced Sagnac interferometers that make it possible to reproduce all the possible trajectories of an optical quantum walk
Externí odkaz:
http://arxiv.org/abs/1901.10966
Autor:
Cuevas, Álvaro, Geraldi, Andrea, Liorni, Carlo, Bonavena, Luís Diego, De Pasquale, Antonella, Sciarrino, Fabio, Giovannetti, Vittorio, Mataloni, Paolo
We present a new optical scheme enabling the implementation of highly stable and configurable non-Markovian dynamics. Here one photon qubit can circulate in a multipass bulk geometry consisting of two concatenated Sagnac interferometers to simulate t
Externí odkaz:
http://arxiv.org/abs/1809.01922
Autor:
Cuevas, Álvaro, De Pasquale, Antonella, Mari, Andrea, Orieux, Adeline, Duranti, Stefano, Massaro, Marcello, Di Carli, Andrea, Roccia, Emanuele, Ferraz, José, Sciarrino, Fabio, Mataloni, Paolo, Giovannetti, Vittorio
Publikováno v:
Phys. Rev. A 96, 022322 (2017)
We report a bulk optics experiment demonstrating the possibility of restoring the entanglement distribution through noisy quantum channels by inserting a suitable unitary operation (filter) in the middle of the transmission process. We focus on two r
Externí odkaz:
http://arxiv.org/abs/1707.00161
Autor:
Cuevas, Álvaro, Proietti, Massimiliano, Ciampini, Mario Arnolfo, Duranti, Stefano, Mataloni, Paolo, Sacchi, Massimiliano F., Macchiavello, Chiara
Publikováno v:
Phys. Rev. Lett. 119, 100502 (2017)
We present an effcient experimental procedure that certifies non vanishing quantum capacities for qubit noisy channels. Our method is based on the use of a fixed bipartite entangled state, where the system qubit is sent to the channel input. A partic
Externí odkaz:
http://arxiv.org/abs/1612.07754
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