ファイマンと朝永とシュビンガーは3人でノーベル物理学賞を分け合った。
その中でもファイマンと朝永は二重スリットの思考実験で量子現象の奇妙さについて
言及した。
朝永は二重スリットの実験での奇妙現象をそのままおかしいと随筆で述べたが
それ以上に立ち入って考えを掘り下げなかった。
ファイマンはというと一片の論文で深く掘り下げた。
Simulating Physics with Computers
Richard P. Feynman
Departmentof Physics, California Instituteof Technology,Pasadena,California91107 Received May 7, 1981
(この論文は有料だが同じタイトルで探すとフリーで見ることができる。)
この論文は今日の量子コンピューターの先駆けと言われている。
ファイマンの先駆的ビジョンの優れたところがこの論文に表れている。
ファイマンはナノテクノロジーの出現にも予言的な発言をしている。
朝永とノーベル賞を得たがその後の創造性はファイマンが大きく
差を広げている。
一部転載:
On the program it says this is a keynote speech--and I don't know what a keynote speech is. I do not intend in any way to suggest what should be in this meeting as a keynote of the subjects or anything like that. I have my own things to say and to talk about and there's no implication that anybody needs to talk about the same thing or anything like it. So what I want to talk about is what Mike Dertouzos suggested that nobody would talk about. I want to talk about the problem of simulating physics with computers and I mean that in a specific way which I am going to explain. The reason for doing this is something that I learned about from Ed Fredkin, and my entire interest in the subject has been inspired by him. It has to do with learning something about the possibilities of computers, and also something about possibilities in physics. If we suppose that we know all the physical laws perfectly, of course we don't have to pay any attention to computers. It's interesting anyway to entertain oneself with the idea that we've got something to learn about physical laws; and if I take a relaxed view here (after all I'm here and not at home) I'll admit that we don't understand everything.
The first question is, What kind of computer are we going to use to simulate physics? Computer theory has been developed to a point where it realizes that it doesn't make any difference; when you get to a universal computer, it doesn't matter how it's manufactured, how it's actually made. Therefore my question is, Can physics be simulated by a universal com- puter? I would like to have the elements of this computer locally intercon- nected, and therefore sort of think about cellular automata as an example (but I don't want to force it). But I do want something involved with the
....