報告承辦單位:物理與電子科學學院
報告內容:Detecting acceleration-modified vacuum fluctuations (Unruh effect) with quantum entanglement
報告人姓名:余洪偉
報告人所在單位:湖南師范大學
報告人職稱/職務及學術頭銜:教授、博導
報告時間:2023年5月29日 15:00
報告地點:理科樓B413
報告人簡介:余洪偉,美國Tufts大學博士,湖南師范大學教授, 博士生導師。教育部長江學者創(chuàng)新團隊帶頭人,享受國務院政府特殊津貼專家,多次入選美國斯坦福大學發(fā)布的全球前2%頂尖科學家榜單和愛思唯爾中國高被引學者榜單, 先后主持國家自然科學基金重大項目課題、重點和面上項目等國家級科研項目的研究。2008年獲得湖南省科技進步一等獎(排名第一), 2018年獲湖南省自然科學一等獎(排名第一)。指導學生先后獲得全國百篇優(yōu)秀博士學位論文一次,提名論文一次以及湖南省優(yōu)秀博士學位論文五次。
報告摘要:We show that for a pair of rotating atoms under pure vacuum noise with appropriate orbital radius and angular velocity, nonlocal entanglement as compared to local coherence is not only more resilient against vacuum noise to be preserved in the steady-state for initially entangled states, but more importantly is also predestined to be created and be preserved for initially separable states. The asymptotic entanglement as a result of centripetal acceleration is thus initial-state independent and can be viewed as a manifestation of the Unruh effect. Based on this phenomenon, we propose an optomechanical setup to detect the Unruh effect with the state-of-the-art technologies.