منابع مشابه
Two-photon interference between disparate sources for quantum networking
Quantum networks involve entanglement sharing between multiple users. Ideally, any two users would be able to connect regardless of the type of photon source they employ, provided they fulfill the requirements for two-photon interference. From a theoretical perspective, photons coming from different origins can interfere with a perfect visibility, provided they are made indistinguishable in all...
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In this paper, we demonstrate a source of photon pairs based on four-wave-mixing in photonic crystal fibres. Careful engineering of the phase matching conditions in the fibres enables us to create photon pairs at 597 nm and 860 nm in an intrinsically factorable state showing no spectral correlations. This allows for heralding one photon in a pure state and hence renders narrow band filtering ob...
متن کاملSingle Photon Interference
In studying the Mach-Zender interferometer and Young’s Double Slit experimental setups, we can observe the wave-particle duality of light using an attenuated laser beam. In the Mach-Zender setup, we demonstrate that the fringe visibility of the interference pattern changes as the analyzing polarizer angle changes which controls “which path” information. In addition, the fringe visibility increa...
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The wave-particle duality of light was verified by multi and single photon interference both through Young’s double slit and Mach-Zehnder interferometer. In these two sets of experiments, the interference in the single photon level is the same as that at multi photons level with long enough exposure time. In the Mach-Zehnder interferometer, the “whichpath” information can be identified by measu...
متن کاملTheory of two-photon interference
The interference effects that can be observed in the two output arms of a lossless beam splitter are calculated for incident light in the form of a photon-pair excitation in the two input arms. The output state that occurs when the photon pair is excited in a single input arm resembles that expected for independent classical particles, whereas quantum interference effects occur when the photon ...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2009
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys1373