由反昂鲁效应保护的相对论量子隐形传态
Relativistic quantum teleportation protected by the anti-Unruh effect
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中文总结 AI 辅助
研究相对论环境下量子隐形传态，通过昂鲁 - 德维特探测器与大质量标量场相互作用，利用反昂鲁效应，使隐形传态保真度随加速度增加，为减轻量子关联相对论退化提供机制。
中文摘要 AI 辅助
我们研究了相对论环境下的标准量子隐形传态，其中参与者罗布进行匀加速运动，而爱丽丝保持惯性。罗布通过昂鲁 - 德维特探测器与大质量标量场进行局部相互作用。我们表明，对于小的探测器能隙，爱丽丝和罗布之间共享的纠缠随加速度单调增加。对于较大能隙，由于昂鲁效应，纠缠在低加速度时最初会减少，但随后由于反昂鲁效应在更高加速度时会恢复并增强。这种行为与有效探测器温度的降低相关，导致先前因场而损失的量子相干性得以恢复。结果，隐形传态保真度随加速度增加，并在高加速度 regime 中接近 1。我们的结果表明，反昂鲁效应可以保护和恢复量子信息，为减轻量子关联的相对论退化提供了一种潜在机制。
英文摘要
The interaction of an accelerated observer with a quantum field can modify the entanglement and quantum information shared between observers, thereby affecting quantum communication in non-inertial frames. We formulate the standard teleportation protocol in a relativistic setting where Alice remains inertial while Rob undergoes uniform acceleration and is modeled as an Unruh-DeWitt detector locally coupled to a massive scalar field. The detector-field interaction initially leads to a loss of entanglement and quantum information shared between Alice and Rob. Remarkably, under acceleration, the anti-Unruh regime can reverse this degradation, leading to an increase in both the shared entanglement and the accessible quantum information. We further find that, in the anti-Unruh regime, the teleportation fidelity is independent of the local free-evolution time of Alice's and Rob's states. At high accelerations, the recovered entanglement and quantum information enhance the teleportation fidelity, which approaches unity under appropriate conditions. These results demonstrate that the anti-Unruh effect can protect and recover quantum entanglement and information in a non-inertial frame by reducing the detector's effective temperature and the associated decoherence.
