Introduction to quantum non-reciprocal interactions: from non-Hermitian Hamiltonians to quantum master equations and quantum feedforward schemes

Solving Quantum Master Equations with Deep Quantum Neural Networks

Deep quantum neural networks may provide a promising way to achieve quantum learning advantage with noisy intermediate scale quantum devices. Here, we use deep quantum feedforward neural networks capable of universal quantum computation to represent the mixed states for open quantum many-body systems and introduce a variational method with quantum derivatives to solve the master equation for dynamics and stationary states. Owning to the special structure of the quantum networks, this approach enjoys a number of notable features, including the absence of barren plateaus, efficient quantum analo…

全局变为局部：用于全局主方程的高效多体动力学

Global becomes local: Efficient many-body dynamics for global master equations

针对全局 Redfield 主方程需完全对角化 Hamiltonian 的难题，本文提出倒易空间短浴相关时间展开并映射为新颖局部 Lindblad 形式，为局部主方程提供非启发式基础。

量子比特与腔之间的色散非互易性

Dispersive Non-reciprocity between a Qubit and a Cavity

本研究通过共同耦合耗散中间模式实现transmon量子比特与超导腔的非互易色散相互作用，实验表征了相关动力学并提出简洁的非互易主方程模型，拓展了量子非互易现象的研究范式。

量子热机中的在位相互作用：超越局域和全局主方程的效率、整流和纠缠

On-site interactions in quantum thermal machines: efficiency, rectification and entanglement beyond local and global master equations

本文研究两个耦合振子与两个热库构成的连续量子热机，在位相互作用可调谐高温效率、诱导非互易输运和稳态纠缠，并证明Redfield主方程统一了局域和全局主方程。

Coherent optical non-reciprocity in axisymmetric resonators

We describe an approach to optical non-reciprocity that exploits the local helicity of evanescent electric fields in axisymmetric resonators. By interfacing an optical cavity to helicity-sensitive transitions, such as Zeeman levels in a quantum dot, light transmission through a waveguide becomes direction-dependent when the state degeneracy is lifted. Using a linearized quantum master equation, we analyze the configurations that exhibit non-reciprocity, and we show that reasonable parameters from existing cavity QED experiments are sufficient to demonstrate a coherent non-reciprocal optical is…

线性量子系统中通过合成场的非互易热通量

Nonreciprocal heat flux via synthetic fields in linear quantum systems

本文研究线性量子系统中合成场诱导的非互易热传递，提出基于主方程和朗之万方程的两种方法，在四谐振子链中实现总热通量整流。