Polarization-correlated photon pairs from a single ion
F. Rohde, J. Huwer, N. Piro, M. Almendros, C. Schuck, F. Dubin, J., Eschner
TL;DR
This paper demonstrates polarization correlations in photon pairs emitted from a single trapped calcium ion, revealing a high probability of polarization-correlated photon emissions within 24 nanoseconds, supported by a theoretical model.
Contribution
It introduces the first experimental observation of polarization correlations in photon pairs from a single ion and develops a theoretical model to explain these correlations.
Findings
91% probability for polarization-correlated photon pairs within 24 ns
Experimental data fits well with the developed theoretical model
Demonstrates quantum polarization correlation in single-ion fluorescence
Abstract
In the fluorescence light of a single atom, the probability for emission of a photon with certain polarization depends on the polarization of the photon emitted immediately before it. Here correlations of such kind are investigated with a single trapped calcium ion by means of second order correlation functions. A theoretical model is developed and fitted to the experimental data, which show 91% probability for the emission of polarization-correlated photon pairs within 24 ns.
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