Mediated Photon-Photon interactions for quantum chemistry simulations

本计画研究一维光波导中光子与不同排列的量子发射器（二能级态）的非线性相互作用。由于吸收的光子改变了随后入射的光粒子所看到的器件，这导致了有效的光子-光子相互作用。我们的目标是使用这些介导的光子之间的相互作用，最终作为模拟计算架构中的门。在这里，我的目标是提出策略的时间分辨模拟分子中的振动激发超越谐波模式近似;要么使用交叉克尔效应耦合transmons超导器件，光子和transmons之间的耦合通过空腔，或全光设置基于上述介导的光子-光子相互作用的波导。

This project studies the non-linear interaction of photons with different arrangements of quantum emitters (two-level states) in one-dimensional photonic waveguides. Since absorbed photons alter the device seen by subsequently incoming particles of light this leads to effective photon-photon interactions. The goal is to use these mediated interactions between photons ultimately as gates in analog computation architectures. Here, I aim to propose strategies for time-resolved simulation of vibrational excitations in molecules beyond the harmonic mode approximation; either using the cross-Kerr effect to couple transmons in superconducting devices, coupling between photons and transmons via cavities, or an all-optical setup based on the mentioned mediated photon-photon interactions in waveguides.