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Optical manipulation of quantum optic entanglement using graphene clad surface plasmonic polariton device

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Abstract

Here, graphene clad-based two surface plasmonic polariton modes interference (GTSPPMI) coupler is presented to get optically manipulated quantum interference. The Hong–Ou–Mandel depth varying with optical pulse energy is established theoretically using nano-scale two modes coupling. The fidelity of quantum entanglement is tuned by varying incident optical pulse energy and highest quantum fidelity is obtained as ~ 97.5% with optical pulse of energy 5.12 pJ and width 3.8 ps in graphene cladding. Our results promise to obtain optical reconfiguration of quantum plasmonics circuit in more compact and faster way than that with electrooptic and thermooptic way and high fabrication tolerance making its use in large-scale integrated quantum optic device.

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Data availability

All data that support the findings of this study are available from the corresponding author upon reasonable request.

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Acknowledgements

The author remains grateful for providing infrastructure to do this work. This work is completely done by the author and there are no conflicts of interest/competing interests.

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  1. Department of Electronics and Communication Engineering, Tezpur University, Napaam, Tezpur, Assam, 784028, India

    Partha Pratim Sahu

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  1. Partha Pratim Sahu
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Correspondence to Partha Pratim Sahu.

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Sahu, P.P. Optical manipulation of quantum optic entanglement using graphene clad surface plasmonic polariton device. Quantum Inf Process 22, 248 (2023). https://doi.org/10.1007/s11128-023-04006-0

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