Zobrazeno 1 - 10
of 360
pro vyhledávání: '"Roncallo P"'
We propose an interferometric setup where each photon returns one bit of the binary expansion of an unknown phase. It sets up a method for estimating the phase value at arbitrary uncertainty. This strategy is global, since it requires no prior inform
Externí odkaz:
http://arxiv.org/abs/2407.10966
We present a quantum optical pattern recognition method for binary classification tasks. Without direct image reconstruction, it classifies an object in terms of the rate of two-photon coincidences at the output of a Hong-Ou-Mandel interferometer, wh
Externí odkaz:
http://arxiv.org/abs/2404.15266
Publikováno v:
AVS Quantum Sci. 5, 043803 (2023)
The JPEG algorithm compresses a digital image by filtering its high spatial-frequency components. Similarly, we introduce a quantum algorithm that uses the quantum Fourier transform to discard the high spatial-frequency qubits of an image, downsampli
Externí odkaz:
http://arxiv.org/abs/2306.09323
Publikováno v:
Quantum Sci. Technol. 9 015010 (2024)
We present a tomographic protocol for the characterization of multiqubit quantum channels. We discuss a specific class of input states, for which the set of Pauli measurements at the output of the channel directly relates to its Pauli transfer matrix
Externí odkaz:
http://arxiv.org/abs/2212.11968
Publikováno v:
Phys. Rev. A 107, 022419 (2023)
We present a noise deconvolution technique for obtaining noiseless expectation values of noisy observables at the output of multiqubit quantum channels. For any number of qubits or in the presence of correlations, our protocol applies to any mathemat
Externí odkaz:
http://arxiv.org/abs/2207.12386
Publikováno v:
Quantum 7, 968 (2023)
We compare the proposals that have appeared in the literature to describe a measurement of the time of arrival of a quantum particle at a detector. We show that there are multiple regimes where different proposals give inequivalent, experimentally di
Externí odkaz:
http://arxiv.org/abs/2205.02219
Autor:
Victor M. Fontalvo, George J. Nelson, Oscar Pupo-Roncallo, Marco E. Sanjuan, Humberto A. Gómez
Publikováno v:
International Journal of Sustainable Energy, Vol 42, Iss 1, Pp 889-912 (2023)
This study evaluates the techno-economic feasibility of integrating fuel cells into stand-alone power generation systems, combined with different technologies such as diesel generators, wind turbines, and batteries. An optimisation analysis was perfo
Externí odkaz:
https://doaj.org/article/c821f2dd99fa4e99af5649b833c81578
Publikováno v:
Classical and Quantum Gravity (2021)
We study the evaporation of a four-dimensional spherically symmetric black hole formed in a gravitational collapse. We analyze the back-reaction of a massless quantum scalar field conformally coupled to the scalar curvature by means of the semiclassi
Externí odkaz:
http://arxiv.org/abs/2103.02057
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Akademický článek
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