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學術講座第四十五講:Non-Markovian Giant Atoms

作者:周威時間:2021-10-20 08:38瀏覽次數:

學術講座第四十五講

報告題目:Non-Markovian Giant Atoms                              
報 告 人:郭領陣 博士(Max Planck Institute for the Science of Ligh)                    
研究領域:量⼦光學,統計物理,凝聚態物理。
報告時間:2021年10月20日下午15:00
報告地點:量子樓410會議室

報告摘要:

     In standard quantum optics, the (artificial) atom is usually treated as a point-like model and locally coupled to the photon/phonon modes. In recent years, however, the artificial atoms realized in the lab can be much larger than the wavelength of photon/phonon modes. This scenario has been implemented with superconducting qubits coupled to surface acoustic waves [1,2] or to meandering microwave transmission lines [3]. These large artificial quantum systems, which are called giant atoms, can be coupled to the resonator/waveguide in a non-local fashion via multiple coupling points. In this talk, I will introduce the recent developments in giant atoms and related study in quantum optics. Especially, I will discuss the highly non-Markovian dynamics of giant atom due to the deterministic time delays among the coupling points [2,4]. The nonMarkovianity gives rise to many novel phenomena, e.g., the oscillating bound states [5], which do not exist for small atoms.

[1] P. Delsing et al., Science 346, 207 (2014).
[2] G. Andersson et al., Nature Physics 15, 1123 (2019).
[3] W. Oliver et al., Nature 583, 775-779 (2020).
[4] L. Guo et al., Phys. Rev. A 95 , 053821 (2017).
[5] L. Guo et al., Phys. Rev. Research 2, 043014 (2020) .

報告人簡介:

      2001年至2013年,在北京師範大學物理系本科、碩士和博士,其中博士是李新奇教授和德國卡爾斯魯厄理⼯2 London獎得主Gord Schon聯合培養。之後在德國卡爾斯魯厄理⼯2,瑞典查爾姆斯理⼯⼤學和德國馬普光學研究所從事博士後、高級博士後研究工作。在Nature Physics,PRL, PRA等雜誌發表論文20多篇。研究領域量⼦光學;統計物理;凝聚態物理。


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