Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Juan-Rafael Álvarez"'
Autor:
Jefferson, Flórez, Juan-Rafael, Álvarez, Omar, Calderón-Losada, Luis-José, Salazar-Serrano, Alejandra, Valencia
We study the interference between two parallel-propagating Gaussian beams, originated from the same source, as their transverse separation is tuned. The interference pattern as a function of such separation lead us to determine the spatial coherence
Externí odkaz:
http://arxiv.org/abs/1510.04397
Publikováno v:
Quantum 2.0 Conference and Exhibition.
We propose a scheme to generate single photons from 87Rb atoms. The com-bination of coherent STIRAP re-preparation and optical pumping allows for the efficient generation of streams of indistinguishable photons with promising use-cases.
Autor:
M. H. M. Passos, Oscar Cordero, Roberto de J. León-Montiel, Juan P. Torres, Arturo Villegas, Juan-Rafael Álvarez
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
The concept of quantum discord aims at unveiling quantum correlations that go beyond those described by entanglement. Its original formulation [J. Phys. A 34, 6899 (2001); Phys. Rev. Lett 88, 017901 (2002)] is difficult to compute even for the simple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9979c12a26da04f09d916a9d37de389e
Autor:
Juan-Rafael Álvarez, Mark IJspeert, Oliver Barter, Ben Yuen, Thomas D Barrett, Dustin Stuart, Jerome Dilley, Annemarie Holleczek, Axel Kuhn
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys.
In his 1935 Gedankenexperiment, Erwin Schrödinger imagined a box with a cat and a poisonous substance which has a 50% probability of being released, based on the decay of a radioactive atom. As such, the life of the cat and the state of the poison b
Publikováno v:
Optics Express
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Optics Express, Optical Society of America-OSA Publishing, 2020, 28 (4), pp.5538. ⟨10.1364/OE.383196⟩
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Optics Express, Optical Society of America-OSA Publishing, 2020, 28 (4), pp.5538. ⟨10.1364/OE.383196⟩
In 2010 Qi et al. [Opt. Lett. 35(3), 312 (2010)] demonstrated a random number generator based on the drift of the phase of a laser due to spontaneous emission, The out-of-the-lab implementation of this scheme presents two main drawbacks: it requires
Autor:
Mayerlin Nuñez, Jiří Svozilík, Juan-Rafael Álvarez, Daniel F. Urrego, Alejandra Valencia, Omar Calderón-Losada
We present the experimental implementation and theoretical model of a controllable dephasing quantum channel using photonic systems. The channel is implemented by coupling the polarization and the spatial distribution of light, that play, in the pers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d068498fe72a9e8de0372ad4e4c393c0
http://arxiv.org/abs/1710.09848
http://arxiv.org/abs/1710.09848
Autor:
Luis José Salazar-Serrano, Omar Calderón-Losada, Jefferson Flórez, Juan-Rafael Álvarez, Alejandra Valencia
Publikováno v:
Quantum Information and Measurement (QIM) 2017.
We observe spatial interference between two parallel-propagating Gaussian beams separated by an arbitrary distance. This constitutes a method for spatial intensity shaping of light beams, which permit to structure environments to study different quan
Autor:
Luis José Salazar-Serrano, Omar Calderón-Losada, Juan-Rafael Álvarez, Alejandra Valencia, Jefferson Flórez
Publikováno v:
Journal of Optics. 18:125201
We report the observation of interference in position and transverse momentum variables between two parallel-propagating Gaussian beams separated by an arbitrary distance. This resembles the Alford and Gold effect that has been reported for the time-