论文标题
两光子脉冲的完美分裂
Perfect splitting of two-photon pulses
论文作者
论文摘要
我们采用级联的系统方法来数值模拟手性波导QED设置中的光子脉冲与两级散射器的相互作用。可以扩展两个光子的任何纯状态，作为正交两光子脉冲的叠加。我们表明，合适持续时间的两光子脉冲的散射可能会导致纠缠的输出状态，主要是两个均等的两个光子状态。在互补的波数据包中，该状态是两个正交单光子波包的产品状态。上述散射过程的时间逆转允许将可区分的单光量波数据包完美组合到带有两个相同光子的单模脉冲中。
We employ a cascaded system approach to numerically simulate the interaction of photon pulses with a two-level scatterer in a chiral waveguide QED setup. It is possible to expand any pure state of two photons as a superposition of orthogonal two-photon pulses. We show that the scattering of a two-photon pulse of suitable duration may lead to an entangled output state between predominately two equally populated two-photon states. In a complementary wave packet basis, this state is a product state of two orthogonal single photon wave packets. The time reversal of the above scattering process allows for a perfect combination of distinguishable single-photon wave packet into a single-mode pulse carrying two identical photons.
