时 间： 2017 年 10 月 17日 14 : 30 - 16 : 30
地 点： 南五楼 612 学术报告厅
报告人： Francis T. S. Yu 教授，宾夕法尼亚州立大学
邀请人： 张新亮 教授
报告摘要：
在此报告中，我将展示科学与信息之间谜一般的联系。信息和熵存在着深刻联系，没有这种联系，信息在科学中的应用举步维艰。我将揭示，现代物理学的两个重要基石，爱因斯坦的相对论和薛定谔的量子力学，之间存在深刻的联系，即不确定原理。每比特信息都需要时间和能量来传递，创造以及观测。因此任何东西的创造需要巨大的能量以及熵。问题是，能否负担得起？
In this talk, I shall show the mythical relationship between science and information. Since every substance has a price-tag or price-tags of information which includes all the building blocks in our universe, one cannot simply ignore information when dealing with science. We have shown that there is a profound connection between information and entropy, a quantity that has been well accepted in science. Without this connection, information would be more difficult to apply in science. Two of the most important pillars in modern physics must be the Einstein’s relativity theory and the Schrödinger’s quantum mechanics. We show that there exists a profound relationship between them, by means of the uncertainty principle. In due of uncertainty relation, we show that every bit of information takes time and energy to transfer, to create and to observe. Since one cannot create something from nothing, we show that, anything to be created needs a huge amount of energy and requires a great deal of entropy to make it happen! My question is that, can we afford it?
报告人介绍：
杨振寰(Francis T. S. Yu)，宾夕法尼亚州立大学电气工程系Emeritus Evan Pugh教授，美国光学学会、国际光学工程学会终身会士。 杨振寰教授在菲律宾玛布亚科技学院获得学士学位，获密歇根大学硕士和博士学位。1958-1965年间在密歇根大学执教。1966-1980年在韦恩州立大学任教。1980年起成为宾夕法尼亚州立大学电气工程系教授，2004年退休。杨教授在光信息处理，全息，光学，信息论，光学计算等方面有深刻造诣，发表学术论文300余篇，获得如宾夕法尼亚州Evan Pugh 教授（1985），国际光学工程学会Dennis Gabor 奖（2004），美国光学学会Emmet N. Leith 奖章（2017）等众多荣誉。
Francis T. S. Yu received his B.S.E.E. degree from Mapua Institute of Technology, Manila, Philippines, and his M.S. and Ph.D. degrees in Electrical Engineering from the University of Michigan. During the period from 1958 to 1965, he was a teaching fellow, an instructor, and a lecturer in the Electrical Engineering Department at the University of Michigan, and a research associate with the Communication Sciences Laboratory at the same University. From 1966 to 1980 he was on the faculty of the Electrical and Computer Engineering Department at Wayne State University. He was a Visiting Professor in the Electrical and Computer Engineering Department at the University of Michigan from 1978-1979. In 1980 he became a Professor in the Electrical Engineering Department at The Pennsylvania State University. He has been a consultant to several industrial and government laboratories. He is an active researcher in the fields of optical signal processing, holography, optics and information theory, and optical computing. He has published over 300 refereed papers in these areas. He is a recipient of the 1983 Faculty Scholar Medal for Outstanding Achievement in Physical Sciences and Engineering, a recipient of the 1984 Outstanding Researcher in the College of Engineering, was named Evan Pugh Professor of Electrical Engineering in 1985 at Penn State, a recipient of the 1993 Premier Research Award from the Penn State Engineering Society, was named Honorary Professor in Nankai University in 1995, the co-recipient of the 1998 IEEE Donald G. Fink Prize Paper Award, named Honorary Professor in National Chiao Tung University Taiwan in 2004, the recipients of the 2004 SPIE Dennis Gabor Award, and the 2017 OSA Emmet N. Leith Medal. Dr. Yu retired from Penn State University in 2004. Dr. Yu is a life-fellow of IEEE and fellow of OSA, SPIE, and PSC.
