学学术报告：蒋建华博士 (多伦多大学）
时间: 2015-07-25 作者: 浏览次数: 2004
报告题目：Photonic Architecture for Long-Lived, Room-Temperature Bose-Einstein Condensation
报 告 人：蒋建华博士 (多伦多大学物理系Sajeev John课题组)
报告时间：2014年9月3日下午 15：00
报告地点：物理科技楼405
报告摘要：Bose-Einstein Condensation is a macroscopic quantum matter that enables studies of many important physics, such as strong-correlation and many-body entanglement, and offers an important platform to study quantum information.
Current realization of Bose-Einstein Condensation using cold atoms involves high-cost, cryogenic set-ups. An alternative route is to use exciton-polaritons in microcavities, which, however, does not offer equilibrium Bose-Einstein Condensation due to short quasi-particle lifetime. Here I describe photonic crystal microcavities with very strong light-matter interaction to realize room-temperature, equilibrium, exciton-polariton Bose-Einstein condensation. This goal is achieved through a careful balance between strong light trapping in a photonic band gap and large exciton density enabled by a multiple quantum-well structure with a moderate dielectric constant. I will give solid, realistic examinations of such a proposal which can lead to Bose-Einstein condensation for daily-life usage. This can be particularly important for future optical and quantum information processing.
报 告 人：蒋建华博士 (多伦多大学物理系Sajeev John课题组)
报告时间：2014年9月3日下午 15：00
报告地点：物理科技楼405
报告摘要：Bose-Einstein Condensation is a macroscopic quantum matter that enables studies of many important physics, such as strong-correlation and many-body entanglement, and offers an important platform to study quantum information.
Current realization of Bose-Einstein Condensation using cold atoms involves high-cost, cryogenic set-ups. An alternative route is to use exciton-polaritons in microcavities, which, however, does not offer equilibrium Bose-Einstein Condensation due to short quasi-particle lifetime. Here I describe photonic crystal microcavities with very strong light-matter interaction to realize room-temperature, equilibrium, exciton-polariton Bose-Einstein condensation. This goal is achieved through a careful balance between strong light trapping in a photonic band gap and large exciton density enabled by a multiple quantum-well structure with a moderate dielectric constant. I will give solid, realistic examinations of such a proposal which can lead to Bose-Einstein condensation for daily-life usage. This can be particularly important for future optical and quantum information processing.