Through the Japan-Brasil Collaboration in cosmic-ray experiment, there have been discovered the events of production and decay of H-quantum, SHquantum and UH-quantum in the phenomena of multiple production of mesons. They found other interesting events, too, such as the Centauro type, in the same region of extremely high energy. Experimental reports were published so far about these findings/> and their theoretical implications were synthetically discussed in a special issue of Supplement of Prog. Theor. Phys. in 1973.2> Later on, the experimental accuracy has been improved, and still more events have been discovered.8> This issue also contains their report of recent experimental results. I discussed the meaning of the importance of these findings in Prog. Theor. Phys. Suppl. No. 54 (1973), and also in my pamphlet "Opening door to new physics" distributed together with it. Almost all research workers of the theory of elementary particles seem to consider that the gauge theory or "the unified theory of all fundamental forces" has been a recent success in the theory of elementary particles. "New physics" that I mean, however, does not indicate the sort of things such as quark, charm, colour, gluon, weak boson, and so on, because all these things are what were considered on inferences from the theories hitherto presented, ranging from Sakata's two meson theory up to the Sakata model, the Nagoya model and others, and are what have been assumed in order to reinforce these former theories. "New physics" is the one that is concerned with such things as H-,SHand UH-quanta, Centauro phenomena and the related events, which were not expected at all from the former theories. These phenomena at ultra high energies are entirely new, and are named "new states of matter" by C. M.
{"title":"On Present-Day Problems in Theory of Elementary Particles","authors":"M. Taketani","doi":"10.1143/PTPS.76.224","DOIUrl":"https://doi.org/10.1143/PTPS.76.224","url":null,"abstract":"Through the Japan-Brasil Collaboration in cosmic-ray experiment, there have been discovered the events of production and decay of H-quantum, SHquantum and UH-quantum in the phenomena of multiple production of mesons. They found other interesting events, too, such as the Centauro type, in the same region of extremely high energy. Experimental reports were published so far about these findings/> and their theoretical implications were synthetically discussed in a special issue of Supplement of Prog. Theor. Phys. in 1973.2> Later on, the experimental accuracy has been improved, and still more events have been discovered.8> This issue also contains their report of recent experimental results. I discussed the meaning of the importance of these findings in Prog. Theor. Phys. Suppl. No. 54 (1973), and also in my pamphlet \"Opening door to new physics\" distributed together with it. Almost all research workers of the theory of elementary particles seem to consider that the gauge theory or \"the unified theory of all fundamental forces\" has been a recent success in the theory of elementary particles. \"New physics\" that I mean, however, does not indicate the sort of things such as quark, charm, colour, gluon, weak boson, and so on, because all these things are what were considered on inferences from the theories hitherto presented, ranging from Sakata's two meson theory up to the Sakata model, the Nagoya model and others, and are what have been assumed in order to reinforce these former theories. \"New physics\" is the one that is concerned with such things as H-,SHand UH-quanta, Centauro phenomena and the related events, which were not expected at all from the former theories. These phenomena at ultra high energies are entirely new, and are named \"new states of matter\" by C. M.","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"76 1","pages":"224-242"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTPS.76.224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64900223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A short review of the phenomena influenced by the pionic degrees of freedom in nuclei is given. The pionic mechanism of the EMC effect is discussed.
简要回顾了原子核中受介子自由度影响的现象。讨论了电磁兼容效应的介子机制。
{"title":"PION DEGREES OF FREEDOM AND EMC EFFECT","authors":"A. Migdal","doi":"10.1143/PTPS.91.244","DOIUrl":"https://doi.org/10.1143/PTPS.91.244","url":null,"abstract":"A short review of the phenomena influenced by the pionic degrees of freedom in nuclei is given. The pionic mechanism of the EMC effect is discussed.","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"91 1","pages":"244-250"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64913489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of Effective Ranges of n-p and p-p Interactions","authors":"G. Breit, K. A. Friedman, R. Seamon","doi":"10.1143/PTPS.E65.449","DOIUrl":"https://doi.org/10.1143/PTPS.E65.449","url":null,"abstract":"","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"65 1","pages":"449-491"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTPS.E65.449","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64918952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical absorption spectra of modulation-doped n-type semiconductor quantum-well structures are studied theoretically. It is shown that effective Coulomb interaction of a photo-excited hole with the sea of electrons in n=1 conduction-subband via 2D hydrogenic exciton states associated with the unoccupied higher subbands yields an appearance of new subband interference structure on the continuous tail of the Mahan exciton. Numerical results with use of material parameters for GaAs exhibit clearly such effects on the calculated absorption spectra.
{"title":"Interference Effects on Optical Spectra of Mahan Exciton in Semiconductor Quantum Wells","authors":"S. Katayama","doi":"10.1143/PTPS.101.205","DOIUrl":"https://doi.org/10.1143/PTPS.101.205","url":null,"abstract":"Optical absorption spectra of modulation-doped n-type semiconductor quantum-well structures are studied theoretically. It is shown that effective Coulomb interaction of a photo-excited hole with the sea of electrons in n=1 conduction-subband via 2D hydrogenic exciton states associated with the unoccupied higher subbands yields an appearance of new subband interference structure on the continuous tail of the Mahan exciton. Numerical results with use of material parameters for GaAs exhibit clearly such effects on the calculated absorption spectra.","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"101 1","pages":"205-213"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64704253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Metal-Insulator Transition in Oxide Superconductors","authors":"M. Tachiki, H. Matsumoto","doi":"10.1143/PTPS.101.353","DOIUrl":"https://doi.org/10.1143/PTPS.101.353","url":null,"abstract":"","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"101 1","pages":"353-369"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64704856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
There are two motivations to study two-dimensional quantum gravity. First, this theory is a toy model for four-dimensional gravity. Second, two-dimensional quantum gravity is the theory on the world-sheet of both “critical” as well as “non-critical” string theories. Some of our conclusions apply to these two more general situations. Since we would like to draw lessons from this simple theory, which are generic and valid in more complicated systems, we should study it in continuum field theory language. In these notes we review the status of the continuum Liouville approach to quantum gravity. Our understanding of the subject is far from complete. We will point out what we think are the most important open problems, and will speculate about their solutions.
{"title":"Notes on quantum Liouville theory and quantum gravity","authors":"N. Seiberg","doi":"10.1143/PTPS.102.319","DOIUrl":"https://doi.org/10.1143/PTPS.102.319","url":null,"abstract":"There are two motivations to study two-dimensional quantum gravity. First, this theory is a toy model for four-dimensional gravity. Second, two-dimensional quantum gravity is the theory on the world-sheet of both “critical” as well as “non-critical” string theories. Some of our conclusions apply to these two more general situations. Since we would like to draw lessons from this simple theory, which are generic and valid in more complicated systems, we should study it in continuum field theory language. In these notes we review the status of the continuum Liouville approach to quantum gravity. Our understanding of the subject is far from complete. We will point out what we think are the most important open problems, and will speculate about their solutions.","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"102 1","pages":"319-349"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTPS.102.319","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64706907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Decay of the first Rydberg surface state on a metal surface is calculated in terms of Auger transitions between the electronic surface states. Using a three band model to describe the relevant surface band structure, the line width due to this surface Auger process is found to be about 8 times larger on the Ni(111) surface than on the Cu surface. This significant difference results from the difference in surface state occupancy. Comparison with recent experimental data from two photon photoemission demonstrates that these surface states are essential for the decay of the excited electron at surface
{"title":"Auger Decay of Surface Rydberg State","authors":"Shiwu Gao, B. Lundqvist","doi":"10.1143/PTPS.106.405","DOIUrl":"https://doi.org/10.1143/PTPS.106.405","url":null,"abstract":"Decay of the first Rydberg surface state on a metal surface is calculated in terms of Auger transitions between the electronic surface states. Using a three band model to describe the relevant surface band structure, the line width due to this surface Auger process is found to be about 8 times larger on the Ni(111) surface than on the Cu surface. This significant difference results from the difference in surface state occupancy. Comparison with recent experimental data from two photon photoemission demonstrates that these surface states are essential for the decay of the excited electron at surface","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"106 1","pages":"405-410"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64714310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Matsuura, K. Miura, Y. Ono, D. Hirashima, Y. Kuroda
The d-p model with the local constraint has been studied. With help of the slave boson and 1/N-expansion the electronic states are investigated. At T
研究了具有局部约束的d-p模型。借助从玻色子和1/ n展开研究了电子态。在T
{"title":"Electronic states in the Cu-oxide superconductors","authors":"T. Matsuura, K. Miura, Y. Ono, D. Hirashima, Y. Kuroda","doi":"10.1143/PTPS.106.51","DOIUrl":"https://doi.org/10.1143/PTPS.106.51","url":null,"abstract":"The d-p model with the local constraint has been studied. With help of the slave boson and 1/N-expansion the electronic states are investigated. At T<T 0 (coherence temperature) a new band (mid-gap state) appears in the CT gap which behaves as the Fermi liquid with the large Fermi surface. Luttinger sum rule is proved. At T 0 ≤T≤ω 0 (resonance temperature) the mid-gap state behaves as the marginal Fermi liquid. At T≥ω 0 such renormalized band collapses. These occur as the crossover phenomena in contrast to the phase transition in the mean field approximation","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"106 1","pages":"51-62"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64714967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aspects of Semiclassical Theory in the Presence of Classical Chaos","authors":"A. Voros","doi":"10.1143/PTPS.116.17","DOIUrl":"https://doi.org/10.1143/PTPS.116.17","url":null,"abstract":"","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":"116 1","pages":"17-44"},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64725551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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