报告题目：Universal quantum control over bosonic networks

报  告 人：景俊 教授，浙江大学

研究方向：量子光学与量子信息

报告时间：2026年5月25日（星期一）上午10:00

报告地点：量子楼410报告厅

报告简介：

Perfect transfer of unknown states across distinct nodes is a basic function in bosonic quantum networks. We develop a general theory to construct an N-node bosonic network governed by the time-dependent Hamiltonian, as the universal quantum control (UQC) theory for continuous-variable systems. In particular, we can activate nonadiabatic passages superposed of initial and target modes by the commutation condition about the Hamiltonian’s coefficient matrix and projection operator in the representation of time-independent ancillary modes, which serves as the necessary and sufficient condition to solve the time-dependent Schrödinger equation of the full Hamiltonian. To exemplify the versatility of our theory on the Heisenberg-picture passages, we perform arbitrary state exchange, chiral entanglement transfer, and chiral Fock-state transfer. Our work provides a promising avenue toward the universal control of any pair of nodes or modes as well as the entire bosonic network. In addition, we would show the advantages of UQC over conventional methods, such as effective Hamiltonian and Floquet driving.

References:

[1] S. Qi and J. Jing*, Chiral current in Floquet cavity-magnonics, PRA 106, 033711 (2022).

[2] Z. Jin and J. Jing*, Universal perspective on nonadiabatic quantum control, PRA 111, 012406 (2025).

[3] Z. Jin and J. Jing*, Entangling distant systems via universal nonadiabatic passage, PRA 111, 022628 (2025).

[4] Z. Jin and J. Jing*, Universal quantum control over bosonic networks, PRA 113, 012426 (2026).

[5] Z. Jin and J. Jing*, From Liouville equation to universal quantum control: A study of generating ultra-highly squeezed states, arXiv:2604.02635.

报告人简介：

景俊，浙江大学物理学院教授、博士生导师，曾任美国史蒂文斯理工学院博士后级研究助理（2010~2012）；西班牙巴斯克大学理论物理系、美国纽约大学水牛城分校物理系（2013~2014）、北京计算科学中心（2015~2016）、香港理工大学应用物理系（2016）访问学者。曾获2009年度上海市教育委员会&上海市教育发展基金会“晨光”计划学者称号。主要致力于开放量子系统动力学、量子几何相、量子退相干、量子光学系统与固态量子系统的调控、以及量子测量基本理论方面的研究。目前主持国家自然科学基金面上基金三项、青年基金一项，参与国家自然科学基金联合基金两项。

一审：任昌亮

二审：贺兵香

三审：廖洁桥