The existence of White Hole (WH) has been suggested by Schwarzschild solution to the Einstein field equation as a time-reversed Black Hole (BH), besides there has not been observational evidence for their existence yet. Our idea of the “inverse universe”, in which we introduce the time-reversed kinematics as another geometric state, can explain that WH should appear in such a geometry after a matter falls into a BH. In this work, we present a new operation for WH conversion from BH, (...) and by using it the nearly infinity point on the universe, for instance the inside of BH, is geometrically connected to the inside of WH on the inverse universe. Such a conversion is useful to provide the simple solution to the problem of “information loss” in BH. Furthermore, we find another conversion point as the prior geometric state to the Big Bang, and we propose a new cosmology of cyclic universe. (shrink)

Although chimpanzees have been reported to understand to some extent others' visual perception, previous studies using food requesting tasks are divided on whether or not chimpanzees understand the role of eye gaze. One plausible reason for this discrepancy may be the familiarity of the testing situation. Previous food requesting tasks with negative results used an unfamiliar situation that may be difficult for some chimpanzees to recognize as a requesting situation, whereas those with positive results used a familiar situation. The present (...) study tested chimpanzees' understanding of others' attentional states by comparing two requesting situations: an unfamiliar situation in which food was put on a table, and a familiar situation in which chimpanzees requested food held by an experimenter. Chimpanzees showed evidence of understanding the experimenter's attentional variations and the role of eye gaze only in the latter task. This suggests that an unfamiliar requesting situation may keep subjects from expressing their understanding of others' attentional states even though they are sensitive to them. Keywords: Understanding attention; Social cognition; Chimpanzees. (shrink)

Although chimpanzees have been reported to understand to some extent others’ visual perception, previous studies using food requesting tasks are divided on whether or not chimpanzees understand the role of eye gaze. One plausible reason for this discrepancy may be the familiarity of the testing situation. Previous food requesting tasks with negative results used an unfamiliar situation that may be difficult for some chimpanzees to recognize as a requesting situation, whereas those with positive results used a familiar situation. The present (...) study tested chimpanzees’ understanding of others’ attentional states by comparing two requesting situations: an unfamiliar situation in which food was put on a table, and a familiar situation in which chimpanzees requested food held by an experimenter. Chimpanzees showed evidence of understanding the experimenter’s attentional variations and the role of eye gaze only in the latter task. This suggests that an unfamiliar requesting situation may keep subjects from expressing their understanding of others’ attentional states even though they are sensitive to them. Keywords: Understanding attention; Social cognition; Chimpanzees. (shrink)

Although chimpanzees have been reported to understand to some extent others’ visual perception, previous studies using food requesting tasks are divided on whether or not chimpanzees understand the role of eye gaze. One plausible reason for this discrepancy may be the familiarity of the testing situation. Previous food requesting tasks with negative results used an unfamiliar situation that may be difficult for some chimpanzees to recognize as a requesting situation, whereas those with positive results used a familiar situation. The present (...) study tested chimpanzees’ understanding of others’ attentional states by comparing two requesting situations: an unfamiliar situation in which food was put on a table, and a familiar situation in which chimpanzees requested food held by an experimenter. Chimpanzees showed evidence of understanding the experimenter’s attentional variations and the role of eye gaze only in the latter task. This suggests that an unfamiliar requesting situation may keep subjects from expressing their understanding of others’ attentional states even though they are sensitive to them. Keywords: Understanding attention; Social cognition; Chimpanzees. (shrink)

この世界とは何か、を説明しようとする時、意識するとしないとにかかわらず、思い浮かべ、考えざるを得ない問いがある。それは、「人間とは何か」「国家とは何か」「国際関係とは何か」という3つの問いである。これ らの問いが織りなす「世界のできあがり方」の構造を、本書は「自我・国家・国際関係」と呼ぶ。現在も世界の人々を拘束し続ける、この認識論的機制の近代日本における形成過程を、明治末から昭和前半期に活躍した哲学 史家、朝永三十郎の「文脈設定者」としての思想的苦闘から描き出す。「国際関係とは何か」という、国際関係研究の根源への問いを問うには、世界国家の可能性を封じ込めた瞬間を把捉しなければならない。カントの『永 遠平和のために』の単なる解説書とされてきた朝永の『カントの平和論』における、「国際」と「国家」の矛盾、という議論に、その瞬間は埋蔵されていたのである。学問領域を横断し、理論と歴史、思想と実証を交錯させ て根源への問いへ挑み、21世紀の世界の見方、考え方を広く問いかける。.

I shall describe the beautiful fit of the ideas of Alfred North Whitehead and William James with the concepts of relativistic quantum field theory developed by Tomonaga and Schwinger.The central concept is a set of happenings each of which is assigned a space-time region.This growing set of non-overlapping regions fill out a growing space-time region that advances into the still uncreated and yet-to-be-axed future.Each happening has both experiential aspects and physical aspects,which are jointly needed to generate the advance into (...) the future.This conception is useful in passing from the pragmatic interpretation of science to a putative understanding of the reality beyond phenomena,and of our role within it. James' ideas about attention and volition are naturally implementable within this framework,and make us into agents that can act eficaciously upon the physical world on the basis of felt values, rational reasons,and conscious understandings. (shrink)

There have been two Japanese Nobel laureates in chemistry, three in physics, and one in the category of medicine or physiology. This relatively small number has been attributed to shortcomings in Japanese science. The award of the Physics Prize in 1949 to Hideki Yukawa and to his colleague Sin'itirô Tomonaga in 1965 gave public evidence of how Japanese could make outstanding individual contributions to science. Paradoxically, the Prize also reinforced a belief that such men formed part of a traditional (...) hierarchical system. This essay examines how the Nobel Prize has been represented in Japan. (shrink)

The hidden-variable theorems of Bell and followers depend upon an assumption, namely the hidden-variable assumption, that conflicts with the precepts of quantum philosophy. Hence from an orthodox quantum perspective those theorems entail no faster-than-light transfer of information. They merely reinforce the ban on hidden variables. The need for some sort of faster-than-light information transfer can be shown by using counterfactuals instead of hidden variables. Shimony’s criticism of that argument fails to take into account the distinction between no-faster-than-light connection in one (...) direction and that same condition in both directions. The argument can be cleanly formulated within the framework of a fixed past, open future interpretation of quantum theory, which neatly accommodates the critical assumptions that the experimenters are free to choose which experiments they will perform. The assumptions are compatible with the Tomonaga–Schwinger formulation of quantum field theory, and hence with orthodox quantum precepts, and with the relativistic requirement that no prediction pertaining to an outcome in one region can depend upon a free choice made in a region spacelike-separated from the first. (shrink)

In thirty years the science of elementary particles has made few achievements compared with its unsuccessful essays. The recent works of Schwinger, Tomonaga, Feynman and Dyson, however, have had some success. We have here a hint that progress is being made on the formal side of the discipline—though even this work is profoundly disturbing in some of its purely mathematical aspects. There could be no better time to review the situation from a physical and philosophical standpoint, even if this (...) proves to be an over-ambitions undertaking. (shrink)

The question raised by Shimony and Stein is examined and used to explain in more detail a key point of my proof that any theory that conforms to certain general ideas of orthodox relativistic quantum field theory must permit transfers of information over spacelike intervals. lt is also explained why this result is not a problem for relativistic quantum theory, but, on the contrary, opens the door to a satisfactory realistic relativistic quantum theory based on the ideas of Tomonaga, (...) Schwinger, and von Neumann. (shrink)

The problems of the social responsibility of the scientist became a subject of public debate after the World War II in Japan, thanks to the activities and publications of Yukawa and Tomonaga. And such authors as J. Karaki, M.Taketani, Y. Murakami, and S. Fujinaga continued discussion in their books. However, many people seem to be still unaware of the most important source of these problems. As I see it, one of the most important treatments of these problems was the (...) Franck Report (June 11, 1945) submitted to the US government by James Franck (chairman) toward the end of the war. This Report contains many important ideas and suggestions as regards the responsibility of the scientist, the morality of the use of atomic bombs, the prospective nuclear armaments race, and the possibility of international control of nuclear power. However, I should like to concentrate only on the first topic in this paper. Why did Franck and his committee at Metallurgical Laboratory of the University of Chicago feel the urgent need for writing and submitting this Report? According to the Report, "in the past, scientists could disclaim direct responsibility for the use to which mankind had put their disinterested discoveries. We cannot take the same attitude now because the success which we have achieved in the development of nuclear power is fraught with infinitely greater dangers than were all the inventions of the past." (I. Preamble) This passage seems to contain the crux of our problem: These scientists clearly recognize the "new" responsibility for them, and the ground of this responsibility is also clear enough; i.e., when a new scientific discovery or invention turns out to have grave bearings on human interests, the scientists who became aware of that are responsible for notifying people of this and advise to look for suitable means for avoiding prospective dangers. In the rest of the paper, I elaborate the reasoning behind the preceding passage, and confirm that basically the same idea and reasoning has been repeated and developed in Russell-Einstein Manifesto (1955), by Pugwash Conferences (first in 1957), by Tomogana, and by Rotblat (the long-time Secretary of Pugwash, who received the Nobel Peace Prize together with the Conference in 1995). (shrink)

It is often said that the kinetic theory of gases is one of the best examples of the reduction of one theory into another; that is, the classical theory of thermodynamics [or to be more exact, a significant portion of it] is alleged to be reduced to the kinetic theory, which is based on the Newtonian mechanics and the atomistic view of the matter. But what is the nature of this alleged "reduction"? If you want to know the right answer (...) to this, the best way is to examine the historical development of the kinetic theory. The kinetic theory is a theoretical attempt to explain the nature of gases and heat processes, in general, in terms of the movements of numerous molecules constituting a gas. Its major advocates were James Clerk Maxwell (1831-79) and Ludwig Boltzmann (1844-1906); in the course of their work on the kinetic theory, they had to struggle with several conceptual problems, as well as with many empirical problems, and these conceptual problems have something to do with our question of theory reduction. And you will see that these problems center on the concept of probability. Drawing on Dr. Shin'ichiro Tomonaga's examination, I will argue that their case was not a reduction to, but an extension of, the Newtonian mechanics. (shrink)

Previous research in the history of physics has led us to believe that Yoshio Nishina (1890–1951) virtually single‐handedly imported quantum physics into Japan. However, there are first‐hand accounts that Yoshikatsu Sugiura (1895–1960) also played an important role. Sugiura made his name in quantum chemistry with his contribution to the Heitler‐London theory of the chemical bond. Yet, historians of physics have paid scant attention to him. This paper brings forward information on Sugiura from his letters, his scientific papers, and his own (...) recollections until ca. 1930. By examining this material, the present paper studies Sugiura's accomplishments in Europe and his contributions to the development of quantum physics in Japan. We conclude that Sugiura was one of the most important physicists when it comes to the arrival of quantum physics in Japan. In addition, we assess why he has been under‐appreciated in the history of physics in Japan. Our historical study on Sugiura suggests that, in addition to the position Nishina and his students rightfully occupy, there still are important unexplored aspects in the history of Japanese quantum physics. (shrink)