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arXiv · 2309.00622

Quantum secure direct communication with SU(2) invariant separable polarisation- OAM states

Sooryansh Asthana·Rajni Bala·V. Ravishankar
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Abstract

We propose a quantum secure direct communication protocol using SU (2)- invariant $2\times N$ separable states, identified as separable equivalents of two-qubit entangled Werner states in [Bharath & Ravishankar, Phys. Rev. A 89, 062110}]. These states can be experimentally realized as incoherent superpositions of separable polarisation-OAM states.

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Sooryansh Asthana, Rajni Bala, V. Ravishankar. 2023-06-20. Quantum secure direct communication with SU(2) invariant separable polarisation- OAM states. https://arxiv.org/abs/2309.00622

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