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- The University of TokyoJP56 papers
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13 papers · 1 filter
Investigation of resonances with a coupled-channel Complex Scaling Method + Feshbach projection
Akinobu Doté, Takashi Inoue, Takayuki Myo
We have investigated a prototype of kaonic nuclei, "", with a coupled-channel Complex Scaling Method (ccCSM). Combining the ccCSM with Feshbach projection method, we can han…
Quantum Field Theoretic Treatment of Pion Production via Proton Synchrotron Radiation in Strong Magnetic Fields: Effects of Landau Levels
Tomoyuki Maruyama, Myung-Ki Cheoun, Toshitaka Kajino +3
We study pion production from proton synchrotron radiation in the presence of strong magnetic fields. We derive the exact proton propagator from the Dirac equation in a strong magn…
Characterizing common cause closedness of quantum probability theories
Yuichiro Kitajima, Miklos Redei
We prove new results on common cause closedness of quantum probability spaces, where by a quantum probability space is meant the projection lattice of a non-commutative von Neumann…
Repeated Short-term Spectral Softening in the Low/Hard State of the Galactic Black-Hole Candidate Swift J1753.5-0127
Akifumi Yoshikawa, Shin'ya Yamada, Satoshi Nakahira +4
We report MAXI and Swift observations of short-term spectral softenings of the galactic black-hole X-ray binary Swift J1753.5-0127 in the low/hard state. These softening events are…
Anomalous diffusion of volcanic earthquakes
Sumiyoshi Abe, Norikazu Suzuki
Volcanic seismicity at Mt. Etna is studied. It is found that the associated stochastic process exhibits a subdiffusive phenomenon. The jump probability distribution well obeys an e…
Non-linear effects for cylindrical gravitational two-soliton
Shinya Tomizawa, Takashi Mishima
Using a cylindrical soliton solution to the four-dimensional vacuum Einstein equation, we study non-linear effects of gravitational waves such as Faraday rotation and time shift ph…