恒元物理学讲座（第091期）：Nontrivial Light Dynamics Based on Electromagnetically Induced Transparency in Rydberg Atoms

讲座内容：Rydbergatoms have attracted extensive attentions in recent years due to exaggeratedproperties like long lifetimes and strong interactions. They are shown intheory and experiment to promise a versatile platform for quantum informationprocessing and quantum many-body simulation. We first review a few importantadvances on exotic interaction dynamics of single-photon pulses and gatestrategies based on single-photon storage in cold Rydberg atoms. We thenintroduce two of our recent works by developing different approaches tosimulate the propagation dynamics of single-photon or multi-photon pulses incold Rydberg atoms under the EIT configuration. In one work, we show someunexpected results of single-photon interaction lacked in previous works wheremore approximations are used to overcome the complexity in many-body systems.In the other work, we show the nonlinear storage and retrieval of amulti-photon pulse to well recover relevant results in a recent experiment withadditional nontrivial findings clarified.