<p>The subsets of Dicke states are highly entangled symmetric states known as the dihedral <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10773_2025_5910_Article_IEq1.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="22" /> </InlineMediaObject> <EquationSource Format="TEX">\(D_{8}\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>D</mi> <mn>8</mn> </msub> </math></EquationSource> </InlineEquation>- symmetric states having the robust entanglement properties. In this work, we propose a quantum teleportation protocol for teleporting an arbitrary two-qubit state, a Bell-state and a Bell-like state using <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10773_2025_5910_Article_IEq2.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="22" /> </InlineMediaObject> <EquationSource Format="TEX">\(D_{8}\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>D</mi> <mn>8</mn> </msub> </math></EquationSource> </InlineEquation>-symmetric entangled states as channel. The quantum circuits for the proposed teleportation protocol have been implemented on the IBM quasm-simulator and the results obtained confirm the successful execution of the protocol. In addition, the quantum circuit for an arbitrary two-qubit state has also been run on the real 127-qubit IBM Eagle quantum processor. Furthermore, by performing the quantum state tomography, the arbitrary two-qubit teleported state has been reconstructed at the Bob’s end with a 0.65 fidelity. The effects of three different noise types—amplitude damping, phase-flip, and bit-flip—on the proposed teleportation protocol have also been investigated. Additionally, a security study of the protocol against both internal and external attacks has been conducted.</p>

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Quantum Teleportation Using Symmetric States as Quantum Channel

  • Jagat Ram,
  • Dev Dutt,
  • Shashi K. Dhiman

摘要

The subsets of Dicke states are highly entangled symmetric states known as the dihedral \(D_{8}\) D 8 - symmetric states having the robust entanglement properties. In this work, we propose a quantum teleportation protocol for teleporting an arbitrary two-qubit state, a Bell-state and a Bell-like state using \(D_{8}\) D 8 -symmetric entangled states as channel. The quantum circuits for the proposed teleportation protocol have been implemented on the IBM quasm-simulator and the results obtained confirm the successful execution of the protocol. In addition, the quantum circuit for an arbitrary two-qubit state has also been run on the real 127-qubit IBM Eagle quantum processor. Furthermore, by performing the quantum state tomography, the arbitrary two-qubit teleported state has been reconstructed at the Bob’s end with a 0.65 fidelity. The effects of three different noise types—amplitude damping, phase-flip, and bit-flip—on the proposed teleportation protocol have also been investigated. Additionally, a security study of the protocol against both internal and external attacks has been conducted.