报告题目:Geometry-based quantum control in Kitaev chains

报告人：吕辰威

报告时间：2026年4月21日，下午15:00 – 16:30

报告地点：浙江工业大学屏峰校区理学楼二楼教师活动中心

摘要（Abstract）：Recent advances in synthetic quantum matter, such as ultracold atoms and superconducting circuits, have enabled the engineering of novel quantum models with unprecedented controllability. In this talk, I will present our work on a new class of such models: bosonic and spin Kitaev models (BKMs and SKMs), which serve as versatile platforms for exploring geometry-driven quantum phenomena. The BKM, as an analog of its celebrated fermionic counterpart, hosts a range of remarkable properties, including non-Hermitian skin effects and exponential sensitivity to perturbations. We reveal that all these intriguing phenomena originate from a geometric foundation— hyperbolic surfaces hidden within the model. The SKM is obtained by introducing nonlinearity into the BKM, turning it into a quantum spin model. The nonlinearity and underlying curvature conspire to produce polarization-dependent chiral solitons, and a finite magnetic field binds two solitons into a chiral solitonic molecule. Using systems with spin-exchange interactions and locally selective Floquet pulses, we show SKMs are accessible in current experiments. Our results provide a unified geometric perspective for controlling many-body dynamics in Kitaev-type systems. They not only offer means to explore quantum effects in synthetic curved spacetimes, but also suggest a new class of quantum sensors and novel applications in spintronics and quantum information processing.

报告人简介(Bio)：吕辰威，2017年获香港中文大学理学学士，2022年获得普渡大学(Purdue University)理学博士学位，2022-2026年先后在普渡大学、Oklahoma University，香港中文大学做博士后研究，2026年3月入职南方科技大学物理学院担任助理教授。主要研究兴趣包括：人工规范场、人工弯曲时空(synthetic curved space)、几何量子控制(geometry-based quantum control)、开放量子系统、量子传感/精密测量。近五年以第一作者（包括共同第一作者）或者通讯作者出版SCI论文15篇，其中包括Science Advances (1篇)，Phys.Rev.Lett(2篇), Nat.Comm.(2篇), Phys.Rev.Research(3篇), Chin.Phys.Lett.(1篇)等。

邀请人：余东洋