论文标题
在一维光子浴中光子介导的相互作用的极限
On the limits of photon-mediated interactions in one-dimensional photonic baths
论文作者
论文摘要
远处量子发射器之间的非谐振传播光子的交换会引起它们之间的连贯相互作用。这种相互作用的范围以及它们是否伴有耗散，取决于光子能量分散，其尺寸和/或光 - 物质耦合。在此手稿中，我们表征了光子介导的相互作用的限制，对于典型的假设下的通用一维光子浴的情况，它们在光子浴中具有有限的射程跳，以及局部和旋转波和旋转的波浪光 - 光耦合。在这种情况下，我们展示了如何，无论系统参数如何，相干光子介导的相互作用始终可以写成指数的有限总和，因此无法显示幂律的渐近缩放。作为展望，我们可以显示如何放松这些条件，例如，超越局部光耦合（例如，巨型原子）或使用较长的光子跳跃模型，可以在某些距离窗口内获得幂律相互作用，甚至可以在后一种情况下获得幂律相互作用。
The exchange of off-resonant propagating photons between distant quantum emitters induces coherent interactions among them. The range of such interactions, and whether they are accompanied by dissipation, depends on the photonic energy dispersion, its dimensionality, and/or the light-matter couplings. In this manuscript, we characterize the limits of photon-mediated interactions for the case of generic one-dimensional photonic baths under the typical assumptions, that are, having finite range hoppings for the photonic bath plus local and rotating-wave light-matter couplings. In that case, we show how, irrespective of the system's parameter, the coherent photon-mediated interactions can always be written as a finite sum of exponentials, and thus can not display a power-law asymptotic scaling. As an outlook, we show how by relaxing some of these conditions, e.g., going beyond local light-matter couplings (e.g., giant atoms) or with longer-range photon hopping models, power-law interactions can be obtained within certain distance windows, or even in the asymptotic regime for the latter case.
