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arXiv · 2602.17306

Near-perfect quantum teleportation between continuous and discrete encodings

Ravi Kamal Pandey·Shraddha Singh·Dhiraj Yadav·Devendra Kumar Mishra
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Abstract

Quantum teleportation between polarized single-photon and phase-opposite coherent states is studied using a hybrid entangled resource and entangled coherent states. The polarized single-photon qubit represents a discrete-variable (DV) quantum system, whereas the phase-opposite coherent-state qubit constitutes a continuous-variable (CV) system. While teleportation from CV to DV can be achieved with near-unit success probability, the reverse process is usually limited to a maximum success probability of $1/2$. We demonstrate that, by employing cross-Kerr nonlinearity together with passive linear optical components such as polarizing beam splitters, beam splitters, and phase shifters, almost perfect teleportation from DV to CV encodings can also be achieved.

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Ravi Kamal Pandey, Shraddha Singh, Dhiraj Yadav, Devendra Kumar Mishra. 2026-02-19. Near-perfect quantum teleportation between continuous and discrete encodings. https://arxiv.org/abs/2602.17306

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