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Article type: Cover
2014 Volume 69 Issue 6 Pages
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Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Hatsumi Mori
Article type: Article
2014 Volume 69 Issue 6 Pages
349-
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Article type: Index
2014 Volume 69 Issue 6 Pages
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Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Article type: Index
2014 Volume 69 Issue 6 Pages
Toc2-
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Yuji Tachikawa
Article type: Article
2014 Volume 69 Issue 6 Pages
352-353
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Keitaro Tanoi
Article type: Article
2014 Volume 69 Issue 6 Pages
354-360
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Following the nuclear accident in March 2011, plenty of radionuclides were widely spread and the agriculture field was contaminated by the nuclides. A large volume of data was gathered about the agricultural products supplied to the market. However, little is known about the mechanism of radionuclides dynamics. The Graduate School of Agricultural and Life Sciences, the University of Tokyo has diverse facilities available throughout Japan, including forests and meadowlands, where many kinds of research have been performed to clarify the radiocaesium dynamics since the disaster. Some mechanisms of radiocaesium dynamics have been clarified: radiocaesium translocation from leaf or bark to edible part, potassium effect to reduce radiocaesium in rice grains.
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Tadashi Takayanagi, Tatsuma Nishioka, Shinsei Ryu
Article type: Article
2014 Volume 69 Issue 6 Pages
361-369
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Entanglement entropy has attracted renewed interest in the fields of quantum field theory, quantum gravity and quantum information theory after the discovery of the holographic formula based on the AdS/CFT correspondence. The similarity between the formula and tensor network representation of quantum many-body system implies that holographic geometry can be interpreted as a renormalization of entanglement. In this article, recent progress on entanglement entropy and its role are reviewed from various perspectives.
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Yasuki Nagai, Kazuyuki Hashimoto
Article type: Article
2014 Volume 69 Issue 6 Pages
370-375
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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In Japan, about 0.9 million diagnostic procedures are carried out using ^<99m>Tc, the daughter nuclide of ^<99>Mo with a half-life of 66 h, separated from ^<99>Mo; all ^<99>Mo radioisotopes are imported. Most of ^<99>Mo has been produced by the fission reaction of highly enriched ^<235>U in research reactors in the world. However, a number of incidents of the reactors caused the shortage of ^<99>Mo worldwide, which triggered widespread discussions on the reliable supply of ^<99>Mo. We proposed a new route to produce a large quantity of high quality ^<99>Mo using fast neutrons from an accelerator.
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Tatsumi Aoyama, Masashi Hayakawa, Toichiro Kinoshita, Makiko Nio
Article type: Article
2014 Volume 69 Issue 6 Pages
376-380
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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The anomalous magnetic moment g-2 of lepton is one of the most closely studied quantities in particle physics. The electron g-2 has played the central role in testing the validity of quantum electrodynamics (QED). The notable discrepancy observed between the measurement and the theoretical prediction of the muon g-2 may lead to a possible new physics beyond the standard model. Recent updates in the QED contribution involving the complete determination of the tenth-order correction in the perturbation theory provides further improvements in the precision tests. Our numerical approach toward these problems is described.
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Shintaro Taie, Yoshiro Takahashi
Article type: Article
2014 Volume 69 Issue 6 Pages
381-385
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Ultracold atoms in periodic potentials created by optical lattices have been actively investigated as a new research field of condensed matter physics, for their cleanness, high controllability, and novel measurement schemes. The advance in cooling technique enabled to load more and more atomic species into optical lattices, and experiments have been rapidly diversified. Here, we introduce the realization of the SU(N) Hubbard model, which is obtained by extending, using alkaline-earth-like atoms in optical lattices.
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Makoto Yamaguchi, Tetsuo Ogawa
Article type: Article
2014 Volume 69 Issue 6 Pages
386-391
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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We have constructed a comprehensive theory that can describe equilibrium and highly non-equilibrium phases in a unified way in exciton-polariton systems. Based on this framework, experiments ranging from Bose-Einstein condensation to lasing are successfully explained. We believe that these findings become a milestone for future fundamental studies of nonequilibrium statistical physics as well as optical physics.
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[in Japanese]
Article type: Article
2014 Volume 69 Issue 6 Pages
392-393
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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[in Japanese]
Article type: Article
2014 Volume 69 Issue 6 Pages
394-
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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[in Japanese]
Article type: Article
2014 Volume 69 Issue 6 Pages
395-396
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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[in Japanese]
Article type: Article
2014 Volume 69 Issue 6 Pages
397-
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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[in Japanese]
Article type: Article
2014 Volume 69 Issue 6 Pages
398-
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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[in Japanese]
Article type: Article
2014 Volume 69 Issue 6 Pages
398-399
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Article type: Appendix
2014 Volume 69 Issue 6 Pages
400-405
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Article type: Appendix
2014 Volume 69 Issue 6 Pages
405-406
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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[in Japanese]
2014 Volume 69 Issue 6 Pages
406-
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Article type: Appendix
2014 Volume 69 Issue 6 Pages
407-
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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2014 Volume 69 Issue 6 Pages
408-413
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Article type: Appendix
2014 Volume 69 Issue 6 Pages
414-416
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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2014 Volume 69 Issue 6 Pages
417-437
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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Article type: Appendix
2014 Volume 69 Issue 6 Pages
438-
Published: June 05, 2014
Released on J-STAGE: August 22, 2019
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