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.