{"title":"Reflections on Hideki Yukawa and the Meson 50 Symposium","authors":"R. Dalitz","doi":"10.1143/PTPS.85.293","DOIUrl":"https://doi.org/10.1143/PTPS.85.293","url":null,"abstract":"","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64909464","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":"K-N Inelastic Processes","authors":"H. Kanada, T. Matsuoka, Tsuneo Suzuki","doi":"10.1143/PTPS.E67.219","DOIUrl":"https://doi.org/10.1143/PTPS.E67.219","url":null,"abstract":"","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTPS.E67.219","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64920831","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":"Magnetism in Single-Band Models Exact One-Dimensional Wave Functions Generalised to Higher Dimensions","authors":"D. Edwards","doi":"10.1143/PTPS.101.453","DOIUrl":"https://doi.org/10.1143/PTPS.101.453","url":null,"abstract":"States of complete spin-alignment, except for one reversed spin, are investigated for a Fermi gas with 0'-function interactions and for the Hubbard model. A variational ansatz for the wave function of such states is given and is shown to be exact in one dimension. The wave function contains a set of one-electron orbitals which satisfy certain self-consistent field equations. The wave function forms the basis of a numerical scheme, described elsewhere, which should determine whether the state of complete spin alignment in the two-dimensional Hubbard model is ever stable against spin reversal in the thermodynamic limit.","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64704829","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":"On the Mott-Hubbard Band in La2CuO4","authors":"M. Kataoka, M. Ikebe","doi":"10.1143/PTPS.101.381","DOIUrl":"https://doi.org/10.1143/PTPS.101.381","url":null,"abstract":"The Mott-Hubbard (MH) band in the charge-transfer type insulator LazCuO. is inves· tigated theoretically. The two cases in each of which either 3dx'-y' or 3daz'-r' orbit on the Cu site (with the z axis perpendicular to the CuOz plane) forms the MH-band are examined by applying Hubbard's approximation to these orbits. The relevant 2P orbits on the ligand 0 sites and a d orbit free from MH splitting are taken into account with the use of the Hartree-Fock approximation. The calculated result shows that the daz'-r' orbit can cause the MH band occupied by about one d-hole, while it is very difficult for the dx'-Y' orbit to form a MH band lying above the top valence band.","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64704954","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":"Electron correlations in the high-dimension Hubbard model","authors":"H. Hasegawa","doi":"10.1143/PTPS.101.463","DOIUrl":"https://doi.org/10.1143/PTPS.101.463","url":null,"abstract":"","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64705213","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":"Characters of the Uq(sl(3, C)) Highest Weight Modules","authors":"V. Dobrev","doi":"10.1143/PTPS.102.137","DOIUrl":"https://doi.org/10.1143/PTPS.102.137","url":null,"abstract":"","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTPS.102.137","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64705742","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":"Theory of Core Hole Decay Dynamics of Adsorbate on Metal Surfaces","authors":"H. Ueba","doi":"10.1143/PTPS.106.369","DOIUrl":"https://doi.org/10.1143/PTPS.106.369","url":null,"abstract":"A comparative study of a core hole decay dynamics is made for an adsorbate on a metal surface. On the basis of the available experimental results for a CO molecule chemisorbed on Cu(llO) as a prototype system, we investigate the elementary processes of the core hole decay via various new Auger channels open for adsorbates, i.e., the crossed Auger transition and the participation of an electron in the initially unoccupied level of the adsorbate created by charge transfer from the substrate before core hole decay or resonant core excitation. We calCulate the valence Auger spectrum and deexcitation spectrum following resonant excita tion. These spectra are compared with the direct valence photoemission, in particular with a single valence hole state screened by charge transfer from the metal. Absence of shake-up satellite in the deexcitation spectrum following resonant core to bound (e.g., 2Jr* of a CO molecule) level excitation and the mismatch of the binding energy of the screened final state between direct photoemission or normal Auger spectrum and resonantly excited Auger spectrum are explained in terms of the relaxation processes of the excited state before the Auger decay of the core hole. The electronic structures of the adsorbate on a metal surface, which is of eminent interest not only for its own right, but also for gaining deeper insight into the microscopic mechanisms of a wide variety of surface chemical reactions, have been studied by means of various surface electronic spectroscopies such as core (XPS) and valence (UPS) photoemission (PES) for the occupied states, inverse photoemission (IPS) for partially occupied or unoccupied states, and absorption (ABS) for the electronic transitions between the occupied and the unoccupied states. Auger elec tron spectroscopy (AES) commonly used to probe the chemical species at or near surfaces is also recognized as a useful tool to determine the energy levels and the bonding configurations of adsorbates, A comparison of these surface electron spectroscopies has been presented in a review article of Plummer et al. 1 ) for a CO molecule on various metal surfaces as a prototype system. In a series of works.. we have studied the ABS,","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64714177","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":"Characteristic aspects of pion condensed phases","authors":"T. Takatsuka, R. Tamagaki, T. Tatsumi","doi":"10.1143/PTPS.112.67","DOIUrl":"https://doi.org/10.1143/PTPS.112.67","url":null,"abstract":"Characteristic aspects of pion-condensed phases are described in a simple model, for the system involving only nucleons and pions which interact through the π−N P-wave interaction. We consider one typical version in each of three kinds of pion condensation; the one of neutral pions (π 0 ), the one of charged pions (π c ) and the combined one in which both the π 0 and π c condensations are coexistent. Emphasis is put on the description to clarify the novel structures of the nucleon system which are realized in the pion-condensed phases. At first, it is shown that the π 0 condensation is equivalent to the particular nucleonic phase realized by a structure change of the nucleon system, where the attractive first-order effect of the one-pion-exchange (OPE) tensor force is brought about coherently","PeriodicalId":20614,"journal":{"name":"Progress of Theoretical Physics Supplement","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64720648","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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