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Abstract:

In this article we propose a very simple scheme for detecting the state and the degree of entanglement of two modes of radiation using a beam splitter. We find that using this device we can tell whether the state coming out of a certain apparatus is maximally entangled, by measuring the intensity of the radiation of one of the modes. This result is independent of the transmittivity of the beam splitter. In some cases it is also possible to determine the state exactly, by measuring the dispersion of one of the modes.

Registro:

Documento: Artículo
Título:The beam splitter as a state and entanglement detector
Autor:Berlín, G.; Aliaga, J.
Filiación:Depto. de Fís. J J Giambiagi, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 1, 1428 Buenos Aires, Argentina
Palabras clave:Beam splitter; Entanglement; Relevant operators; Electromagnetic field effects; Matrix algebra; Optical beam splitters; Photodetectors; Photons; Problem solving; Quantum teleportation; Quantum theory
Año:2003
Volumen:5
Número:3
Página de inicio:279
Página de fin:282
DOI: http://dx.doi.org/10.1088/1464-4266/5/3/313
Título revista:Journal of Optics B: Quantum and Semiclassical Optics
Título revista abreviado:J Opt B Quant Semiclassical Opt
ISSN:14644266
CODEN:JOBOF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14644266_v5_n3_p279_Berlin

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Citas:

---------- APA ----------
Berlín, G. & Aliaga, J. (2003) . The beam splitter as a state and entanglement detector. Journal of Optics B: Quantum and Semiclassical Optics, 5(3), 279-282.
http://dx.doi.org/10.1088/1464-4266/5/3/313
---------- CHICAGO ----------
Berlín, G., Aliaga, J. "The beam splitter as a state and entanglement detector" . Journal of Optics B: Quantum and Semiclassical Optics 5, no. 3 (2003) : 279-282.
http://dx.doi.org/10.1088/1464-4266/5/3/313
---------- MLA ----------
Berlín, G., Aliaga, J. "The beam splitter as a state and entanglement detector" . Journal of Optics B: Quantum and Semiclassical Optics, vol. 5, no. 3, 2003, pp. 279-282.
http://dx.doi.org/10.1088/1464-4266/5/3/313
---------- VANCOUVER ----------
Berlín, G., Aliaga, J. The beam splitter as a state and entanglement detector. J Opt B Quant Semiclassical Opt. 2003;5(3):279-282.
http://dx.doi.org/10.1088/1464-4266/5/3/313