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arXiv 1907.12445quant-phgr-qc
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加速观测者间基于Dirac模的量子隐形传态

Quantum teleportation in terms of Dirac modes between accelerated observers

Yue Dai, Yu Shi

备注：
20 pages, preprint
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摘要：

研究了两个独立加速的观测者分别观测到的两个Dirac模之间的纠缠。由于Unruh效应的影响，纠缠度降低，但当两个观测者的加速度都是无穷大时，纠缠度仍然保持非零。我们还研究了利用纠缠狄拉克模的量子隐形传态，并计算了各种情况下的量子纠缠度。一般来说，保真度取决于要传送的单量子位态$γ|0\rangle +δ|1\rangle$，以及要使用的贝尔态。在两个加速度均为无穷大的极限下，使用$|ϕ^\pm\rangle\equiv\frac{1}{2}(|00\rangle\pm |11\rangle) $的平均保真度为$\frac{3}{4}$，而使用$|ψ^\pm\rangle\equiv \frac{1}{2} (|01\rangle\pm |10\rangle) $的平均保真度为$\frac{1}{2} + |γ|^2 |δ|^2$。

英文摘要：

We have studied entanglement between two Dirac modes respectively observed by two independently accelerated observers. Due to Unruh effect, the entanglement degrades, but residual nonzero entanglement remains even when the accelerations of both observers are infinite. We have also investigated quantum teleportation using entangled Dirac modes, and calculated the fidelities in various cases. In general, the fidelity depends on the single-qubit state $γ|0\rangle +δ|1\rangle$ to be teleported, as well as which Bell state to use. In the limit that both accelerations are infinite, the average fidelity in using $|ϕ^\pm\rangle\equiv\frac{1}{2}(|00\rangle\pm |11\rangle) $ is $\frac{3}{4}$, while that in using $|ψ^\pm\rangle\equiv \frac{1}{2} (|01\rangle\pm |10\rangle) $ is $\frac{1}{2} + |γ|^2 |δ|^2$.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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