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

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

We study the generation of a 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 p...

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Veröffentlicht in:Journal of optics (2010) 2020-07, Vol.22 (7), p.75202
Hauptverfasser: Swain, Manoranjan, Rai, Amit, Selvan, M Karthick, Panigrahi, Prasanta K
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entanglement
integrated quantum photonics
perfect W-state
quantum optics
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creator Swain, Manoranjan
Rai, Amit
Selvan, M Karthick
Panigrahi, Prasanta K
description We study the generation of a 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 a femtosecond laser direct writing technique. These platforms are interferometrically stable, scalable, less sensitive to decoherence and ensure a very low loss factor of 0.1dBcm−1 during photon propagation, and hence are ideal for generation of a perfect W-state. In addition to generation of the single photon perfect W-state, we study its non-local properties using the theory of local elements of reality.
doi_str_mv 10.1088/2040-8986/ab9512
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subjects entanglement
integrated quantum photonics
perfect W-state
quantum optics
title Single photon generation and non-locality of perfect W-state
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