報(bào)告承辦單位:物理與電子科學(xué)學(xué)院

報(bào)告內(nèi)容:Detecting acceleration-modified vacuum fluctuations (Unruh effect) with quantum entanglement

報(bào)告人姓名:余洪偉

報(bào)告人所在單位:湖南師范大學(xué)

報(bào)告人職稱/職務(wù)及學(xué)術(shù)頭銜:教授、博導(dǎo)

報(bào)告時(shí)間:2023年5月29日 15:00

報(bào)告地點(diǎn):理科樓B413

報(bào)告人簡(jiǎn)介:余洪偉，美國(guó)Tufts大學(xué)博士，湖南師范大學(xué)教授, 博士生導(dǎo)師。教育部長(zhǎng)江學(xué)者創(chuàng)新團(tuán)隊(duì)帶頭人，享受國(guó)務(wù)院政府特殊津貼專家，多次入選美國(guó)斯坦福大學(xué)發(fā)布的全球前2%頂尖科學(xué)家榜單和愛思唯爾中國(guó)高被引學(xué)者榜單, 先后主持國(guó)家自然科學(xué)基金重大項(xiàng)目課題、重點(diǎn)和面上項(xiàng)目等國(guó)家級(jí)科研項(xiàng)目的研究。2008年獲得湖南省科技進(jìn)步一等獎(jiǎng)（排名第一）， 2018年獲湖南省自然科學(xué)一等獎(jiǎng)（排名第一）。指導(dǎo)學(xué)生先后獲得全國(guó)百篇優(yōu)秀博士學(xué)位論文一次，提名論文一次以及湖南省優(yōu)秀博士學(xué)位論文五次。

報(bào)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.