报告题目:Advantages of Bosonic mode in quantum metrology
报 告 人:邹长铃 教授(国家优青),中国科学技术大学
研究方向:集成光子芯片、量子计算、量子精密测量
报告时间:2023年11月27日(星期一)上午10:00
报告地点:量子楼410
报告摘要:
In the past decades, great progress has been achieved in the quantum control of bosonic mode with superconducting quantum circuits. One potential application of the bosonic mode is quantum metrology, which utilizes the advantage of the large Hilbert space of the bosonic mode to enhance the precision of sensing. In this talk, I will introduce our recent work on quantum-enhanced sensing with a single bosonic mode. On one hand, by preparing the maximum variance states and Fock states, we approached the Heisenberg limit of phase measurement. On the other hand, we demonstrated the enhanced sensitivity of radiometry via quantum error correction.
References:
1. W. Wang#, Y. Wu#, Y. Ma, W. Cai, L. Hu, X. Mu, Y. Xu, Zi-Jie Chen, H. Wang, Y. P. Song, H. Yuan*, C.-L. Zou*, L.-M. Duan*, and L. Sun*. Heisenberg-limited single-mode quantum metrology in a superconducting circuit. Nature Communications 10, 4382 (2019)
2. W. Wang#, Z.-J. Chen#, X. Liu#, W. Cai, Y. Ma, X. Mu, L. Hu, Y. Xu, H. Wang, Y. P. Song, X. -B. Zou, C. -L. Zou*, L. Sun*. Quantum-enhanced radiometry via approximate quantum error correction. Nature Communications 13, 3214 (2022)
3. X. Deng#, S. Li#, Z.-J. Chen#, Z. Ni, Y. Cai, J. Mai, L. Zhang, P. Zheng, H. Yu, C.-L. Zou*, S. Liu, F. Yan*, Y. Xu*, D. Yu*. Heisenberg-limited quantum metrology using 100-photon Fock states. arXiv:2306.12622 (2023)
报告人简介:
邹长铃,中国科学技术大学特任教授,博士生导师。分别于2008年和2013年获得中国科学技术大学学士、博士学位。之后在中国科学技术大学和美国耶鲁大学开展博士后研究。依托于郭光灿院士领导的中科院量子信息重点实验室,组建了混合量子集成芯片实验小组,致力于集成光子芯片、量子计算、量子精密测量的研究,围绕着腔量子电动力学、量子频率转换等方面深入展开理论与实验研究,以解决集成光子器件应用中的实际实验问题。发表SCI论文50余篇,被引用一万余次。曾荣获2019年中国光学学会“饶毓泰基础光学奖”、教育部2022年自然科学二等奖,承担国家自然科学基金优青、面上和重点等项目。