Symmetric Bidirectional Quantum Teleportation using a Six-Qubit Cluster State as a Quantum Channel

• URL: http://arxiv.org/abs/2204.02722v1
• Date: Wed, 6 Apr 2022 10:56:39 GMT
• Title: Symmetric Bidirectional Quantum Teleportation using a Six-Qubit Cluster State as a Quantum Channel
• Authors: Javid A Malik, Muzaffar Qadir Lone and Rayees A Malla
• Abstract summary: Bidirectional quantum teleportation is a fundamental protocol for exchanging quantum information between two quantum nodes. We propose a new scheme for symmetric bidirectional quantum teleportation using a six-qubit cluster state as the quantum channel. The efficiency of the proposed protocol is remarkably increased to $50%$ which is highest till now.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Bidirectional quantum teleportation is a fundamental protocol for exchanging quantum information between two quantum nodes. All bidirectional quantum teleportation protocols till now have achieved a maximum efficiency of $40\%$. Here, we propose a new scheme for symmetric bidirectional quantum teleportation using a six-qubit cluster state as the quantum channel, for symmetric ($3\leftrightarrow3$) qubit bidirectional quantum teleportation of a special three-qubit entangled state. The novelty of our scheme lies in its generalization for ($N\leftrightarrow N$) qubit bidirectional quantum teleportation employing a $2N$-qubit cluster state. The efficiency of the proposed protocol is remarkably increased to $50\%$ which is highest till now. Interestingly, only GHZ-state measurements and four Toffoli-gate operations are necessary which is independent of the number $(N)$ of qubits to be teleported.

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