Semiclassical versus quantum behavior in fourth-order interference
JOSA B, Vol. 11, Issue 6, pp. 1130-
1141 (1994)
http://dx.doi.org/10.1364/JOSAB.11.001130
Enhanced HTML Acrobat PDF (1568 KB)
Abstract
A theoretical construct is presented for fourth-order interference between the signal and the idler beams of a parametric downconverter. Previous quantum treatments of fourth-order interference have employed correlated single-photon wave packets. The introduced approach, however, relies on Gaussian-state field correlations, which were previously used to characterize quadrature-noise squeezing produced by an optical parametric amplifier and nonclassical twin-beam generation in an optical parametric oscillator. Three principal benefits accrue from the correlation-function formalism. First, the quantum theory of fourth-order interference is unified with that for the other nonclassical effects of χ^{(2)} interactions, i.e., squeezing and twin-beam production. Second, the semiclassical photodetection limit on Gaussian-state fourth-order interference is established; a purely quantum effect can be claimed at fringe visibilities substantially below the 50% level. Finally, both photon-coincidence counting (within the low-photon-flux regime) and intensity interferometry (in the high-photon-flux limit) are easily analyzed within a common framework.
© 1994 Optical Society of America
Citation
Jeffrey H. Shapiro and Ke-Xun Sun, "Semiclassical versus quantum behavior in fourth-order interference," J. Opt. Soc. Am. B 11, 1130-
1141 (1994)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-11-6-1130
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References
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