报告题目:Ballistic Atom Pumps
报 告 人:John B. Delos,College of William and Mary
报告时间:2015年10月13日14:00
报告地点:理科楼三楼报告厅(C302)
报告摘要:Researchers have long been interested in electron transport through mesojunctions containing time-dependent potential barriers, a process often called “quantum pumping”. A useful model of such a system is a ballistic atom pump: two reservoirs of neutral ultracold atoms connected by a channel containing oscillating repulsive potential-energy barriers. This system can create net particle transport in either direction. Classically, this system is a nice model of chaotic transport, and the quantum description cannot be fully understood without analyzing the underlying classical dynamics.