报告题目：Parrondo's Paradox in Quantum Walk
主 讲 人：Munsif Jan 浙江师范大学 博士后
时 间：2023年10月20日10:00
地 点：安徽大学磬苑校区理工E楼E400
主办单位：物理与光电工程学院
欢迎各位老师、同学届时前往！
报告摘要：
The Parrondo effect is a well-known apparent paradox where a combination of biased random walks displays a counterintuitive reversal in direction. These random walks can be expressed in terms of classical coin tossing games, leading to the surprising result that a combination of losing games can result in a winning game. There is now a large body of literature on quantum walks theoretically analyzing the quantum version of this effect, but to date, there have been no experimental observations of quantum Parrondo walks. Here, the first experimental verification of a quantum Parrondo walk within a quantum optics scenario is demonstrated. Based on the compact large-scale experimental quantum-walk platform, two rotation operators are implemented to realize the quantum Parrondo effect. Furthermore, we simulate several territories and investigate the regimes of the relative phase of initial state of coins where Parrondo games exist. Moreover, we also analyze the relationships between Parrondo’s game and quantum entanglement and show regimes where Parrondo sequence may generate maximal entangler state in our scheme. Quantum walks are fundamental to multiple quantum algorithms, and this research provides motivation to expand the results to further explore quantum Parrondo walks.
报告人简介：
Munsif Jan，浙江师范大学博士后。2019年12月获中国科学技术大学量子信息重点实验室博士学位。主要研究方向为保护量子相干、纠缠及其在量子信息中的应用。首次使用量子行走实现了帕隆多悖论的实验。目前的研究方向包括量子行走、纠缠保护、量子电池、量子限速时间、量子相变等。