Effect of noise in the quantum bidirectional direct communication protocol using non-maximally entangled states. (English) Zbl 1496.81039
Summary: Possibility of using non-maximally entangled states in quantum bidirectional direct communication has been shown recently by A. Srikanth and S. Balakrishnan [“Controller-independent quantum bidirectional communication using non-maximally entangled states”, Quantum Inf. Process. 19, Paper No. 133, 11 p. (2020; doi:10.1007/s11128-020-02628-2)]. The effect of noise in this protocol is analyzed by considering amplitude and phase damping models. Suitable combinations of messages and initial states are identified to minimize the effect of noise in the protocol. Further, we have shown the possibility of demarking the effects due to noise and the intruder.
MSC:
| 81P45 | Quantum information, communication, networks (quantum-theoretic aspects) |
| 81P47 | Quantum channels, fidelity |
| 81P40 | Quantum coherence, entanglement, quantum correlations |
| 94A34 | Rate-distortion theory in information and communication theory |
| 60H40 | White noise theory |
Keywords:
quantum dialogue; quantum bidirectional communication; amplitude damping; phase damping; fidelityReferences:
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