论文标题
离散时间光子量子步行中无形的非热潜能
Invisible non-Hermitian potentials in discrete-time photonic quantum walks
论文作者
论文摘要
离散的光子量子量子在一个合成晶格上行走，在该晶格中，空间和时间的光演变都被离散化，最近为观察多种非弱者物理现象以及复杂介质中光散射的控制提供了一个引人入胜的平台。一个相当开放的问题是，在这种离散的系统中确实存在类似于连续光学介质的潜能。 这里表明，在某些条件下，在离散时间光子量子步行中，缓慢钻取的kramers-kronig电势表现为无形的电位。
Discrete-time photonic quantum walks on a synthetic lattice, where both spatial and temporal evolution of light is discretized, have provided recently a fascinating platform for the observation of a wealth of non-Hermitian physical phenomena and for the control of light scattering in complex media. A rather open question is whether invisible potentials, analogous to the ones known for continuous optical media, do exist in such discretized systems. Here it is shown that, under certain conditions, slowly-drifting Kramers-Kronig potentials behave as invisible potentials in discrete-time photonic quantum walks.
