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Article type: Cover
2003 Volume 58 Issue 3 Pages
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Article type: Index
2003 Volume 58 Issue 3 Pages
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Article type: Index
2003 Volume 58 Issue 3 Pages
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Akimitsu Jun
Article type: Article
2003 Volume 58 Issue 3 Pages
157-
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Eiichi Kuramoto
2003 Volume 58 Issue 3 Pages
158-165
Published: March 05, 2003
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Defect production and the interaction with dislocations in the crystals under irradiation has been an important problem in the field of lattice defects and even in the present days many problems remain unsolved. This problem is extended from the atomistic level to the macroscopic level and must be dealt in the way of multi-scale view. In the present paper fundamental aspects of the irradiation problems will be scoped especially from the point of the so-called bias effect.
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Ryugo Hayano, Masaki Hori, Makoto Fujiwara
2003 Volume 58 Issue 3 Pages
166-174
Published: March 05, 2003
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The construction of Antiproton Decelerator (AD) at CERN in Geneva was completed in the summer of 2000, and important new results, such as high precision laser spectroscopy of antiprotonic helium atoms and production of a large number of cold antihydrogen atoms were obtained. We discuss these results and future prospects with emphasis on why decelerating antiprotons to low energies can open up an interesting new physics.
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Kazuhiko Sugiyama
2003 Volume 58 Issue 3 Pages
175-181
Published: March 05, 2003
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A new technology has been developed to directly measure optical frequencies to the microwave reference frequency, which can be measured with electronic methods. The technology, using ultra-fast mode-locked lasers, is much more simple and reliable than that previously used. It contributes to improvement of the wavelength or length standards, and enables us to rcalize the frequency standards, now defined in the microwave region, in the optical frequency to improve their stability and accuracy. The technology is based upon the fact that the periodic pulse train of a mode-locked laser can be described in the frequency domain as a lot of spectral lines equally separated by the pulse repetition frequency, called an optical frequency comb. When the optical frequency comb has a spectral width over one octave, one can determine its center frequency, and therefore measure a laser frequency just by making a beat with one of its mode. The octave-spanning optical frequency comb can be easily rcalized after the invention of photonic crystal fibers. The author reviews the basics of this new technique of optical frequency measurement as he refers to the system which he had developed.
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Shin-ichi Uchida, Naoto Nagaosa
2003 Volume 58 Issue 3 Pages
182-186
Published: March 05, 2003
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It has been widely believed that phonons are not relevant to the high-temperature superconductivity in copper oxides. However, it is recently proposed based on the photoemission result that quasiparticles in the carrier-doped CuO
2 planes couple strongly with a specific phonon mode with energy in the 50 80 meV range. In addition, the discovery of high T
c in MgB
2 and in C
60 is suggestive of a route toward high T
c via phonon mechanism. We overview why phonons have been disregarded in the study of high-T
c superconductivity. In fact, phonons are irrelevant in some properties, particularly in the charge transport, but relevant in others. We discuss a role of electron-phonon interaction under strong electronic correlation in copper oxide superconductors.
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Hitoshi Negoro
2003 Volume 58 Issue 3 Pages
187-190
Published: March 05, 2003
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X-rays from black-hole candidates, such as Cygnus X-1, exhibit rapid, and chaotic time variability. The origin of the variability has been long in mystery. Recent development in time domain analyses and computer simulations based on accretion disk theories, however, greatly helps us to understand the physical environment around the black hole.
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Jirohta Kasagi, Hideyuki Yuki
2003 Volume 58 Issue 3 Pages
190-194
Published: March 05, 2003
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The D+D fusion reactions in metals were measured with bombarding energies down to kcV, far below the Coulomb barrier. It was shown that the reaction rate depends on the host metals very much ; in some metals observed were unexpectedly large enhancement of the reaction rate. Similar enhancement was seen for the Li+D reaction in metal. The observed enhancement cannot be explained by the known screening mechanism alone but suggests the existence of an additional and important mechanism to enhance the reaction rate in metals.
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Kayoko Awaya
2003 Volume 58 Issue 3 Pages
195-197
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Kazuo Kitahara
Article type: Article
2003 Volume 58 Issue 3 Pages
198-
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Akio Hosoya
Article type: Article
2003 Volume 58 Issue 3 Pages
198-199
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Takehiko Ishii
Article type: Article
2003 Volume 58 Issue 3 Pages
199-200
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Tsuguhiro Watanabe, Masami Fujiwara
Article type: Article
2003 Volume 58 Issue 3 Pages
201-202
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 3 Pages
202-
Published: March 05, 2003
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 3 Pages
202-203
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 3 Pages
203-
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[in Japanese]
Article type: Article
2003 Volume 58 Issue 3 Pages
204-
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Article type: Appendix
2003 Volume 58 Issue 3 Pages
204-206
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Article type: Appendix
2003 Volume 58 Issue 3 Pages
206-210
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Article type: Appendix
2003 Volume 58 Issue 3 Pages
210-211
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Article type: Appendix
2003 Volume 58 Issue 3 Pages
211-212
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Article type: Appendix
2003 Volume 58 Issue 3 Pages
212-213
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Article type: Appendix
2003 Volume 58 Issue 3 Pages
214-
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Article type: Appendix
2003 Volume 58 Issue 3 Pages
215-223
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Article type: Appendix
2003 Volume 58 Issue 3 Pages
224-228
Published: March 05, 2003
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