Search Results - "Xavier, G. B."

Continuous-variable quantum key distribution over a 15 km multi-core fiber by Sarmiento, S, Etcheverry, S, Aldama, J, López, I H, Vidarte, L T, Xavier, G B, Nolan, D A, Stone, J S, Li, M J, Loeber, D, Pruneri, V

“…Abstract The secure transfer of information is critical to the ever-increasing demands of the digital world. Continuous-variable quantum key distribution…”
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Five Measurement Bases Determine Pure Quantum States on Any Dimension by Goyeneche, D., Cañas, G., Etcheverry, S., Gómez, E. S., Xavier, G. B., Lima, G., Delgado, A.

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Quantum random number generation enhanced by weak-coherent states interference by Ferreira da Silva, T, Xavier, G B, Amaral, G C, Temporão, G P, von der Weid, J P

“…We propose and demonstrate a technique for quantum random number generation based on the random population of the output spatial modes of a beam splitter when…”
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Narrowband polarization-entangled photon pairs distributed over a WDM link for qubit networks by Sauge, S, Swillo, M, Albert-Seifried, S, Xavier, G B, Waldebäck, J, Tengner, M, Ljunggren, D, Karlsson, A

“…We present a bright, narrowband, portable, quasi-phase-matched two-crystal source generating polarization-entangled photon pairs at 809 nm and 1555 nm at a…”
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Dynamic generation of photonic spatial quantum states with an all-fiber platform by Alarcón, A, Argillander, J, Spegel-Lexne, D, Xavier, G B

“…Photonic spatial quantum states are a subject of great interest for applications in quantum communication. One important challenge has been how to dynamically…”
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Polarization-independent single-photon switch based on a fiber-optical Sagnac interferometer for quantum communication networks by Alarcón, A., González, P., Cariñe, J., Lima, G., Xavier, G. B.

“…An essential component of future quantum networks is an optical switch capable of dynamically routing single photons. Here we implement such a switch, based on…”
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Five Measurement Bases Determine Pure Quantum States on Any Dimension by Goyeneche, D, Cañas, G, Etcheverry, S, Gómez, E S, Xavier, G B, Lima, G, Delgado, A

“…A long-standing problem in quantum mechanics is the minimum number of observables required for the characterization of unknown pure quantum states. The…”
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Quantum key distribution session with 16-dimensional photonic states by Etcheverry, S., Cañas, G., Gómez, E. S., Nogueira, W. A. T., Saavedra, C., Xavier, G. B., Lima, G.

“…The secure transfer of information is an important problem in modern telecommunications. Quantum key distribution (QKD) provides a solution to this problem by…”
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Multi-core fiber integrated multi-port beam splitters for quantum information processing by Cariñe, J., Cañas, G., Skrzypczyk, P., Šupić, I., Guerrero, N., Garcia, T., Pereira, L., Prosser, M. A. S., Xavier, G. B., Delgado, A., Walborn, S. P., Cavalcanti, D., Lima, G.

“…Multi-port beam splitters are cornerstone devices for high-dimensional quantum information tasks, which can outperform the two-dimensional ones. Nonetheless,…”
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Long-distance distribution of genuine energy-time entanglement by Cuevas, A., Carvacho, G., Saavedra, G., Cariñe, J., Nogueira, W.A.T., Figueroa, M., Cabello, A., Mataloni, P., Lima, G., Xavier, G.B.

“…Any practical realization of entanglement-based quantum communication must be intrinsically secure and able to span long distances avoiding the need of a…”
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Full polarization control for fiber optical quantum communication systems using polarization encoding by Xavier, G B, Vilela de Faria, G, Temporão, G P, von der Weid, J P

“…A real-time polarization control system employing two non-orthogonal reference signals multiplexed in either time or wavelength with the data signal is…”
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Proof-of-principle demonstration of measurement-device-independent quantum key distribution using polarization qubits by Ferreira da Silva, T., Vitoreti, D., Xavier, G. B., do Amaral, G. C., Temporão, G. P., von der Weid, J. P.

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Tunable entanglement distillation of spatially correlated down-converted photons by Gómez, E S, Riquelme, P, Solís-Prosser, M A, González, P, Ortega, E, Xavier, G B, Lima, G

“…We report on a new technique for entanglement distillation of the bipartite continuous variable state of spatially correlated photons generated in the…”
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Experimental polarization encoded quantum key distribution over optical fibres with real-time continuous birefringence compensation by Xavier, G B, Walenta, N, Vilela de Faria, G, Temporão, G P, Gisin, N, Zbinden, H, von der Weid, J P

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Active polarization control for quantum communication in long-distance optical fibers with shared telecom traffic by Xavier, G. B., de Faria, G. Vilela, da Silva, T. Ferreira, Temporão, G. P., von der Weid, J. P.

“…We experimentally demonstrate the compatibility of wavelength multiplexed active polarization stabilization for quantum communication in an optical fiber…”
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Laplace - Fibonacci transform by the solution of second order generalized difference equation by Pinelas, Sandra, Xavier, G. B. A., Kumar, S. U. Vasantha, Meganathan, M.

“…The main objective of this paper is finding new types of discrete transforms with tuning factor t. This is not only analogy to the continuous Laplace transform…”
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Quantum channel with controllable decoherence using polarization-time coupling by Temporão, G. P., Xavier, G. B., von der Weid, J. P.

“…An optical quantum channel that introduces decoherence in the polarization state by continuously controlling the output degree of polarization (DOP) is…”
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Dynamic generation of photonic spatial quantum states with an all-fiber platform by Alarcón, A, Argillander, J, Spegel-Lexne, D, Xavier, G. B

“…Optic Express 31, 10673-10683 (2023) Photonic spatial quantum states are a subject of great interest for applications in quantum communication. One important…”
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Few-mode-fiber technology fine-tunes losses of quantum communication systems by Alarcón, A, Argillander, J, Lima, G, Xavier, G. B

“…Phys. Rev. Applied 16, 034018 (2021) A natural choice for quantum communication is to use the relative phase between two paths of a single-photon for…”
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Polarization-independent single-photon switch based on a fiber-optical Sagnac interferometer for quantum communication networks by Alarcón, A, González, P, Cariñe, J, Lima, G, Xavier, G. B

“…An essential component of future quantum networks is an optical switch capable of dynamically routing single-photons. Here we implement such a switch, based on…”
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