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Paper detail

Single photon generation and non-locality of perfect W-state

We study the generation of single photon perfect W-state. An important aspect of this perfect W-state is that, it can be used for perfect teleportation and superdense coding, which are not achievable with maximally entangled W-state. Our scheme for generation involves entanglement between various path degrees of freedom of a single photon in a compact and weakly coupled integrated waveguide system, which can be fabricated precisely with femtosecond laser direct writing technique. These platforms are interferometrically stable, scalable, less sensitive to decoherence and ensures a very low loss factor of 0.1dB/cm during photon propagation and hence are ideal for generation of perfect W-state. In addition to generation of single photon perfect W-state we study its non local properties using theory of local elements of reality.

preprint2020arXivOpen access
Manoranjan SwainAmit RaiM. Karthick SelvanPrasanta K. Panigrahi
quant-ph
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Manoranjan SwainAmit RaiM. Karthick SelvanPrasanta K. Panigrahi

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