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In physics, the Hanbury Brown and Twiss (HBT) effect is any of a variety of correlation and anti-correlation effects in the intensities received by two detectors from a beam of particles. HBT effects can generally be attributed to the wave–particle duality of the beam, and the results of a given experiment depend on whether the beam is composed of fermions or bosons. Devices which use the effect are commonly called intensity interferometers and were originally used in astronomy, although they are also heavily used in the field of quantum optics.

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  • Photon Bunching (de)
  • Efecto Hanbury Brown y Twiss (es)
  • Hanbury Brown and Twiss effect (en)
  • Effetto Hanbury Brown e Twiss (it)
  • 汉伯里·布朗及特维斯效应 (zh)
rdfs:comment
  • Unter Photon Bunching (von englisch Bunch – Anhäufung) versteht man das Auftreten von zeitlichen Korrelationen einzelner Photonen aus derselben Quelle, in der Regel einer thermischen Lichtquelle. Anschaulich gesprochen „verklumpen“ thermisch erzeugte Photonen, zwei Detektoren messen mit erhöhter Wahrscheinlichkeit gleichzeitig Photonen aus der Quelle. Photon Bunching wurde zuerst von Robert Hanbury Brown und Richard Twiss beobachtet und wird deshalb auch als Hanbury Brown-Twiss-Effekt (HBT-Effekt) bezeichnet. (de)
  • In physics, the Hanbury Brown and Twiss (HBT) effect is any of a variety of correlation and anti-correlation effects in the intensities received by two detectors from a beam of particles. HBT effects can generally be attributed to the wave–particle duality of the beam, and the results of a given experiment depend on whether the beam is composed of fermions or bosons. Devices which use the effect are commonly called intensity interferometers and were originally used in astronomy, although they are also heavily used in the field of quantum optics. (en)
  • En física, el efecto Hanbury Brown y Twiss (HBT) describe la categoría de efectos de correlación y anti-correlación que ocurren en las intensidades recibidas por dos detectores de un haz de partículas. Los efectos HBT pueden atribuírse generalmente a la dualidad onda-partícula del haz, y los resultados de un experimento dependen de si el haz está compuesto de fermiones o bosones. Los aparatos que utilizan este tipo de efecto se conocen como interferómetros de intensidad y han sido utilizados originalmente en astronomía, aunque también han sido utilizados fuertemente en el área de la óptica cuántica. (es)
  • In fisica, l'effetto Hanbury Brown e Twiss (HBT) è uno degli effetti di correlazione e anti-correlazione nell'intensità che arriva a due rilevatori da un fascio di particelle. L'effetto HBT viene in genere attribuito al dualismo onda-particella del fascio, e i risultati dell'esperimento dipendono dal fatto che il fascio sia composto da fermioni o da bosoni. Strumenti che usano l'effetto sono in genere chiamati interferometri a intensità ed erano originariamente usati in astronomia, sebbene trovino anche largo impiego in ottica quantistica. (it)
  • 汉伯里·布朗及特维斯效应(英語:Hanbury Brown and Twiss effect);由于量子力学的相干性,将一束不相干的光分成二束,它们的强度也能发生干涉,这种现象称为「汉伯里·布朗及特维斯效应」。它是由和这两人于1956年发现的。此后,相干和不相干的一束光为二个探测器接受强度相干的现象,统称为「汉伯里·布朗及特维斯效应」。 经典的干涉仪是以观察二束相位相干的光的干涉而工作的。自发现「汉伯里·布朗及特维斯效应」后,也可利用此效应制成光强度相干的干涉仪。测量有距离的星角大小。现在,物理学家依赖这个效应去试验复杂光源的量子性质。 (zh)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Photon_bunching.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Two-photon_Amplitude.svg
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  • Unter Photon Bunching (von englisch Bunch – Anhäufung) versteht man das Auftreten von zeitlichen Korrelationen einzelner Photonen aus derselben Quelle, in der Regel einer thermischen Lichtquelle. Anschaulich gesprochen „verklumpen“ thermisch erzeugte Photonen, zwei Detektoren messen mit erhöhter Wahrscheinlichkeit gleichzeitig Photonen aus der Quelle. Photon Bunching wurde zuerst von Robert Hanbury Brown und Richard Twiss beobachtet und wird deshalb auch als Hanbury Brown-Twiss-Effekt (HBT-Effekt) bezeichnet. (de)
  • In physics, the Hanbury Brown and Twiss (HBT) effect is any of a variety of correlation and anti-correlation effects in the intensities received by two detectors from a beam of particles. HBT effects can generally be attributed to the wave–particle duality of the beam, and the results of a given experiment depend on whether the beam is composed of fermions or bosons. Devices which use the effect are commonly called intensity interferometers and were originally used in astronomy, although they are also heavily used in the field of quantum optics. (en)
  • En física, el efecto Hanbury Brown y Twiss (HBT) describe la categoría de efectos de correlación y anti-correlación que ocurren en las intensidades recibidas por dos detectores de un haz de partículas. Los efectos HBT pueden atribuírse generalmente a la dualidad onda-partícula del haz, y los resultados de un experimento dependen de si el haz está compuesto de fermiones o bosones. Los aparatos que utilizan este tipo de efecto se conocen como interferómetros de intensidad y han sido utilizados originalmente en astronomía, aunque también han sido utilizados fuertemente en el área de la óptica cuántica. (es)
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