论文标题
量子非高斯光子一致
Quantum non-Gaussian Photon Coincidences
论文作者
论文摘要
光子的巧合代表了量子技术的重要资源。他们暴露了物质中的非线性量子过程，对于纠缠来源至关重要。我们得出了广泛适用的标准，用于量子非高斯两光子巧合，以证明新的光子源质量。该标准拒绝从高斯参数过程中出现的状态，该过程通常限制量子技术中的应用。我们还分析了量子非高斯巧合的鲁棒性，并与基于它们的宣传单光子的量子非高斯量相比。
Photon coincidences represent an important resource for quantum technologies. They expose nonlinear quantum processes in matter and are essential for sources of entanglement. We derive broadly applicable criteria for quantum non-Gaussian two-photon coincidences that certify a new quality of photon sources. The criteria reject states emerging from Gaussian parametric processes, which often limit applications in quantum technologies. We also analyse the robustness of the quantum non-Gaussian coincidences and compare with the heralded quantum non-Gaussianity of single-photons based on them.
