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
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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
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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
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Volumen: | 5
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Número: | 3
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Página de inicio: | 279
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Página de fin: | 282
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DOI: |
http://dx.doi.org/10.1088/1464-4266/5/3/313 |
Título revista: | Journal of Optics B: Quantum and Semiclassical Optics
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Título revista abreviado: | J Opt B Quant Semiclassical Opt
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ISSN: | 14644266
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CODEN: | JOBOF
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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