论文标题
量子重力的符号
Signatures of Quantum Gravity in the Gravitational Self-Interaction of Photons
论文作者
论文摘要
我们提出了使用腔中光子的重力自相互作用进行量子重力的相对论测试。我们证明，这种相互作用导致在光的量子状态下导致许多量子引力特征，而任何经典的重力理论都无法再现。我们使用量子参数估计理论严格评估这些效果，并讨论最佳提取其签名的简单测量方案。至关重要的是，所提出的测试没有QED光子光子散射，对中介引力的自旋敏感，并且可以探测引力相互作用的位置。这些协议为研究相对论环境中重力的量子性质提供了新的途径。
We propose relativistic tests of quantum gravity using the gravitational self-interaction of photons in a cavity. We demonstrate that this interaction results in a number of quantum gravitational signatures in the quantum state of the light that cannot be reproduced by any classical theory of gravity. We rigorously assess these effects using quantum parameter estimation theory, and discuss simple measurement schemes that optimally extract their signatures. Crucially, the proposed tests are free of QED photon-photon scattering, are sensitive to the spin of the mediating gravitons, and can probe the locality of the gravitational interaction. These protocols provide a new avenue for studying the quantum nature of gravity in a relativistic setting.
