Journal ArticleDOI
Correlation between Photons in two Coherent Beams of Light
R. Hanbury Brown,R. Q. Twiss +1 more
TLDR
Hanbury-Brown and Twiss as mentioned in this paper showed that photon detections in the two daughter beams were correlated: the photons were bunching together, which corresponded to a correlation in the intensity of light in two beams, which could be used to infer the angular size of distant stars.Abstract:
Classical interferometry works by detecting correlations in the phases of two waves. In Nature in 1956, R. Hanbury-Brown and R. Q. Twiss demonstrated another technique that probes quantum-mechanical correlations in the electromagnetic field. Splitting an incoherent light beam, they found that photon detections in the two daughter beams were correlated: the photons were bunching together. This corresponds to a correlation in the intensity of light in the two beams, which Hanbury-Brown and Twiss suggested could be used to infer the angular size of distant stars. Physicists now rely on the effect to probe the quantum character of complex light sources. [Obituary of Robert Hanbury Brown: Nature 416, 34 (2002)]read more
Citations
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Journal ArticleDOI
Many-Body Physics with Ultracold Gases
TL;DR: In this article, a review of recent experimental and theoretical progress concerning many-body phenomena in dilute, ultracold gases is presented, focusing on effects beyond standard weakcoupling descriptions, such as the Mott-Hubbard transition in optical lattices, strongly interacting gases in one and two dimensions, or lowest-Landau-level physics in quasi-two-dimensional gases in fast rotation.
Journal ArticleDOI
Shot noise in mesoscopic conductors
TL;DR: Theoretical and experimental work concerned with dynamic fluctuations has developed into a very active and fascinating subfield of mesoscopic physics as discussed by the authors, which can be used to obtain information on a system which is not available through conductance measurements.
Journal ArticleDOI
High Photoluminescence Efficiency and Optically Pumped Lasing in Solution-Processed Mixed Halide Perovskite Semiconductors
Felix Deschler,Michael Price,Sandeep Pathak,Lina E. Klintberg,David-Dominik Jarausch,Ruben Higler,Sven Hüttner,Tomas Leijtens,Samuel D. Stranks,Henry J. Snaith,Mete Atatüre,Richard T. Phillips,Richard H. Friend +12 more
TL;DR: It is found that photoexcitation in the pristine CH3NH3PbI3-xClx perovskite results in free charge carrier formation within 1 ps and that these free charge carriers undergo bimolecular recombination on time scales of 10s to 100s of ns.
Journal ArticleDOI
A Test of a new type of stellar interferometer on Sirius
R. Hanbury Brown,R. Q. Twiss +1 more
Journal ArticleDOI
Photon Antibunching in Resonance Fluorescence
TL;DR: In this paper, it was pointed out that unlike photoelectric bunching, which can be given a semiclassical interpretation, antibunching is understandable only in terms of a quantized electromagnetic field.
References
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Journal ArticleDOI
A New type of interferometer for use in radio astronomy
R. Hanbury Brown,R. Q. Twiss +1 more
Abstract: Summary A new type of interferometer for measuring the diameter of discrete radio sources is described and its mathematical theory is given. The principle of the instrument is based upon the correlation between the rectified outputs of two independent receivers at each end of a baseline, and it is shown that the cross-correlation coefficient between these outputs is proportional to the square of the amplitude of the Fourier transform of the intensity distribution across the source. The analysis shows that it should be possible to operate the new instrument with extremely long baselines and that it should be almost unaffected by ionospheric irregularities.