Intensity correlation of coherent light beams

Farkas, Gy.; Jánossy, L.; Náray, Zs.; Варга, П.

doi:10.1007/bf03156699

Cited by 7 publications

(1 citation statement)

References 5 publications

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“…In theÁdám et al experiment [20] they measured a correlation less than 0.6%, so one could conclude that "the photon does not split". Brannen and Ferguson [21] reinvestigated the same problem with the same conclusion (see also Farkas et al [50] and Arecchi et al [30]). In fact, as we mentioned already in the introduction, Clauser [22] has shown later, that the above experiment had not been conclusive for technical reasons, and he developed a more sophisticated experimental arrangement based on four photomultiplier.…”

Section: Examples Of Correlations In Serieses Of Sequences Of Single-mentioning

confidence: 70%

Correlations in single‐photon experiments

Varró

2007

Fortschritte der Physik

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Abstract. Correlations of detection events in two photodetectors placed at the opposite sides of a beam splitter are studied in the frame of classical probability theory. It is assumed that there is always only one photon present in the measuring apparatus during one elementary experiment (one measurement act). Due to the conservation of energy, there is always a strict anticorrelation in one elementary experiment, because the photon cannot excite both of the detectors at the same time. It is explicitely shown in several examples that the "bunching" and "anti-bunching" of the counts in serieses of elementary single-photon experiments is governed by the statistical properties of grouping the sequences of the elementary measurements. PACS IntroductionSince Einstein (1905) introduced the concept of "light quanta" (nowadays they are called "photons") there has been a wide-spreading investigation carried out to check whether one photon can interfere with itself, or, perhaps, it can be split. He wrote in the introduction of his path-breaking paper that "According to the assumption to be kept in eye here, by spreading from a point in the outgoing light rays the energy is not distributed continuously to larger and larger spatial regions, but these rays consist of a finite number of energy quanta localized in spatial points which move without falling apart, and they can be absorbed or created only as a whole." This extreme particle picture for the photon (as a point-like singularity), deduced from the thermodynamical study of black-body radiation in the Wien limit, was refined in a later paper by Einstein (1909a) where he derived from the exact Planck law his famous fluctuation formula, which contains both particle-like and wave-like fluctuations. This was the first mathematically correct formula on the wave-particle duality. Einstein (1909b) Varró (2006). The quantization of the radiation field in modern sense was

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Section: Examples Of Correlations In Serieses Of Sequences Of Single-mentioning

confidence: 70%

Correlations in single‐photon experiments

Varró

2007

Fortschritte der Physik

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Experiments and Theoretical Considerations Concerning the Dual Nature of Light

Jánossy

1973

Cooperative Phenomena

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Low light intensity investigations on the photoelectric effect

1972

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Various features of the photoe]ectric effect were examined in a direct manner by irradiating very short light pulses of low intensity on to the photo-cathode of a photomultiplier. It was shown that the probability of the emission of a photo-electron during a time z is proportional to the light energy absorbed by the photo-cathode, even when the absorbed energy is less than hv. The possibility of light energy accumulation occurring in the photoelectric effect process was also investigated. It was verified that during time intervals of the order of 10-9 sec such ah energy accumulation phenomenon does not exist. Time statistical measurements of the emitted photo-electrons showed that these ate released from the photo-cathode at random.

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Intensity correlation of coherent light beams

Cited by 7 publications

References 5 publications

Correlations in single‐photon experiments

Correlations in single‐photon experiments

Experiments and Theoretical Considerations Concerning the Dual Nature of Light

Low light intensity investigations on the photoelectric effect

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