IAMS Lecture on Jan 9, 11:00am, Poe Lecture Hall, Prof. Chen-Lung Hung 洪承龍副教授
消息來源：原分所
截止日期：2025-01-09
IAMS Lecture Announcement
中研院原分所演講公告
Title: Self-patterning in a dilute gas of ten thousand atoms
Speaker: Prof. Chen-Lung Hung 洪承龍副教授 (Purdue University, USA)
Time: 11:00 AM, January 9 (Thursday), 2025
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂臺大校園內)
Contact: Dr. Shau-Yu Lan 藍劭宇博士
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂臺大校園內)
Contact: Dr. Shau-Yu Lan 藍劭宇博士
Abstract: Once cooled to temperatures as low as one nano-Kelvin, the quantum mechanical wave nature of cold atoms becomes apparent. By controlling the interaction between these atoms, a dilute gas of merely ten thousand atoms—about a million times less dense than air—can exhibit novel nonlinear wave phenomena and fascinating self-patterning dynamics, some of which may be difficult to observe in other nonlinear systems. In this talk, I will discuss the preparation, control, and measurement of quantum matter waves trapped in an optical box. I will demonstrate how triggering instabilities in these nonlinear matter waves can induce self-patterning dynamics, forming spatially or temporally ordered structures and density defects such as vortex dipoles and soliton lasers. As quantum fluctuations in the matter waves primarily seed these pattern-forming instabilities, I will explore how quantum entanglement may arise from the underlying dynamics. One concrete example is the quasiparticle pair production and the formation of Einstein–Podolsky–Rosen pairs of entangled phonons within a matter wave.
聯絡人：陳文慧小姐 02-2366-8275