Zobrazeno 1 - 10
of 394
pro vyhledávání: '"Vidiella-Barranco A"'
Publikováno v:
J. Opt. Soc. Am. B 41, C199 (2024)
The emission of light from an atom represents a fundamental process that provides valuable insights into the atom-light interaction. The Jaynes-Cummings model is one of the simplest fully quantized models to deal with these interactions, allowing for
Externí odkaz:
http://arxiv.org/abs/2406.10763
We present a theoretical investigation of a whispering gallery mode (WGM) resonator coupled to a Mach-Zehnder interferometer (MZI) and show a bimodal coincidence transmission spectrum when the input state is an indistinguishable photon pair. This is
Externí odkaz:
http://arxiv.org/abs/2404.17409
Autor:
Mattos, E. P., Vidiella-Barranco, A.
Publikováno v:
Opt. Lett. 48, 3645 (2023)
In this letter, we present a simple and versatile scheme for enhancing the nonclassical properties of light states using only linear optics and photodetectors. By combining a coherent state $|\alpha\rangle$ and an arbitrary pure state of light $|\phi
Externí odkaz:
http://arxiv.org/abs/2310.04913
Autor:
Downing, C. A., Vidiella-Barranco, A.
Publikováno v:
Sci. Rep. 13, 11004 (2023)
The mathematical objects employed in physical theories do not always behave well. Einstein's theory of space and time allows for spacetime singularities and Van Hove singularities arise in condensed matter physics, while intensity, phase and polariza
Externí odkaz:
http://arxiv.org/abs/2307.03585
Autor:
Deçordi, G. L., Vidiella-Barranco, A.
Publikováno v:
Phys. Lett. A 468, 128750 (2023)
In this work, we investigate the influence of a minimal, phase-sensitive environment on a system of two coupled qubits. The environment is constituted by a single-mode field initially prepared in a type of Schr\"odinger cat state, a quantum superposi
Externí odkaz:
http://arxiv.org/abs/2303.05821
Publikováno v:
Optik, 271, 170016 (2022)
We investigate the generation and transfer of entangled states between two coupled microtoroidal cavities considering two different types of couplings, namely i) via a bridge qubit and ii) via evanescent fields. The cavities support two counter-propa
Externí odkaz:
http://arxiv.org/abs/2209.15638
Publikováno v:
Quantum Inf. Process. 21, 304 (2022)
In this study, we analyze the efficiency of a protocol with discrete modulation of continuous variable non-Gaussian states, the coherent states having one photon added and then one photon subtracted (PASCS). We calculate the secure key generation rat
Externí odkaz:
http://arxiv.org/abs/2112.10128
Autor:
Mattos, E. P., Vidiella-Barranco, A.
Publikováno v:
J. Opt. Soc. Am. B 39, 1885-1893 (2022)
A possible way of generating nonclassical states of light, especially non-Gaussian states, is via the truncation of a given state in the Fock basis. In recent work, we presented an alternative scheme for such quantum scissors [Phys. Rev. A 104, 03371
Externí odkaz:
http://arxiv.org/abs/2112.06084
Autor:
Corrêa Jr., C., Vidiella-Barranco, A.
Publikováno v:
Eur. Phys. J. Plus 137, 473 (2022)
The combination of different quantum systems may allow the exploration of the distinctive features of each system for the investigation of fundamental phenomena as well as for quantum technologies. In this work we consider a setup consisting of an at
Externí odkaz:
http://arxiv.org/abs/2111.14823
Autor:
Mattos, E. P., Vidiella-Barranco, A.
Publikováno v:
Phys.Rev. A 104, 033715 (2021)
We present a scheme of quantum state truncation in the Fock basis (quantum scissors), based on the combined action of a nondegenerate optical parametric amplifier and a beamsplitter. Differently from previously proposed linear-optics-based quantum sc
Externí odkaz:
http://arxiv.org/abs/2109.12016