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25 April 2024 |
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Transverse distinguishability of entangled photons with arbitrarily shaped spatial near- and far-field distributions | | Robert Elsner
; Dirk Puhlmann
; Gregor Pieplow
; Axel Heuer
; Ralf Menzel
; | | Date: |
24 Sep 2014 | | Abstract: | Entangled photons generated by spontaneous parametric down conversion inside
a nonlinear crystal exhibit a complex spatial photon count distribution. A
quantitative description of this distribution helps with the interpretation of
experiments that depend on this structure. We developed a theoretical model and
an accompanying numerical calculation that includes the effects of phase
matching and the crystal properties to describe a wide range of spatial effects
in two-photon experiments. The numerical calculation was tested against
selected analytical approximations. We furthermore performed a double-slit
experiment where we measured the visibility V and the distinguishability D and
obtained $D^2 + V^2 = 1.43$. The numerical model accurately predicts these
experimental results. | | Source: | arXiv, 1409.6990 | | Services: | Forum | Review | PDF | Favorites | |
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