Quantum teleportation via a two-qubit Heisenberg XXZ chain – effects of anisotropy and magnetic field

We investigate the characteristics of entanglement teleportation of a two-qubit Heisenberg XYZ model under different Dzyaloshinskii-Moriya interaction with intrinsic decoherence taken into account. The comparison of the two different Dzyaloshinskii-Moriya interaction, the effects of the initial state and the inputting state on the entanglement teleportation are presented. The results reveal that the dynamics of entanglement is a symmetry function about for the system, whereas it is not for the J z D x D system. The ferromagnetic case is superior to the antiferromagnetic case for restrain decoherence when using the x D system. The dependence of entanglement, output entanglement, fidelity on initial state angle α all demonstrate periodic.Moreover, we find that seemingly some system are not suitable for teleportation, but they can acquire some best exhibition if we take the proper initial state and inputting state.

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“…The two states are equal for F = 1 and orthogonal for F = 0. Thus, the larger F is, the better the teleportation is achieved [23].…”

Section: The Effect Of Initial State and Inputting State On The Fidelitymentioning

confidence: 99%

Influence of intrinsic decoherence on entanglement teleportation via a Heisenberg XYZ model with different Dzyaloshinskii–Moriya interactions

Qin

Ren

2015

Quantum Inf Process

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“…The concept of entangled or non-separable states has attracted much interest especially since the discovery of quantum-computing algorithms [5]. In addition, the concept has been employed to advance anticipations in quantum communication [6][7][8], quantum teleportation [9][10][11], quantum cryptography [12][13][14], etc.. For such practical purposes the simplest model consists of two identifiable particles and inter-particle entanglement is exploited [15,16]. To this end, the system of electrons and photons is of particular interest; information is stored in the electronic states and transferred via photons [17].…”

Section: Introductionmentioning

confidence: 99%

Entanglement between electronic states in silicene and photons

2015

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“…[8][9][10][11][12][13]. In addition, entanglement teleportation (as the name implies, entanglement teleportation means teleporting an entangled quantum state) of various two-qubit states through two independent Heisenberg chains have also been investigated recently [14][15][16]. These investigations reveal several interesting aspects of quantum entanglement not reflected by the concurrence [17] of the state.…”

Section: Introductionmentioning

confidence: 99%

Teleportation of the one-qubit state in decoherence environments

Hu¹

2011

J. Phys. B: At. Mol. Opt. Phys.

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We study standard quantum teleportation of one-qubit state for the situation in which the channel is subject to decoherence, and where the evolution of the channel state is ruled by a master equation in the Lindblad form. A detailed calculation reveals that the quality of teleportation is determined by both the entanglement and the purity of the channel state, and only the optimal matching of them ensures the highest fidelity of standard quantum teleportation. Also our results demonstrated that the decoherence induces distortion of the Bloch sphere for the output state with different rates in different directions, which implies that different input states will be teleported with different fidelities.

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Quantum teleportation via a two-qubit Heisenberg XXZ chain – effects of anisotropy and magnetic field

Cited by 35 publications

References 12 publications

Influence of intrinsic decoherence on entanglement teleportation via a Heisenberg XYZ model with different Dzyaloshinskii–Moriya interactions

Influence of intrinsic decoherence on entanglement teleportation via a Heisenberg XYZ model with different Dzyaloshinskii–Moriya interactions

Entanglement between electronic states in silicene and photons

Teleportation of the one-qubit state in decoherence environments

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