Simulation study reveals distinct impacts of Markovian and non-Markovian noise on quantum teleportation, indicating entanglement preservation does not always ensure operational advantage.
This study compares the effects of Markovian and non-Markovian noise channels on a standard Bell state-based quantum teleportation protocol. Amplitude damping, phase damping, depolarising, and time-dependent (non-Markovian) channels were analysed within the same simulation framework, and teleportation fidelity was calculated as a function of noise intensity. Critical noise parameters were determined with reference to the classical threshold value (F=2/3), entanglement dynamics were evaluated using concurrence, and entanglement sudden death (ESD) points were identified. Non-Markovian behaviour was quantitatively analysed using the Breuer–Laine–Piilo (BLP) metric. The results show that different noise mechanisms significantly affect teleportation performance, and that entanglement conservation and operational teleportation advantages do not always coincide. Numerical results were validated by analytical comparison
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Hüseyin Bodur (2026) studied this question.
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