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8 papers · 1 filter
Non-Abelian Black Holes and Catastrophe Theory II: Charged Type
T. Tachizawa, K. Maeda, T. Torii
We reanalyze the gravitating monopole and its black hole solutions in the Einstein-Yang-Mills-Higgs system and we discuss their stabilities from the point of view of catastrophe th…
New Strong Interactions Above the Electroweak Scale
Alan R. White
Theoretical arguments for a new higher-color quark sector, based on Pomeron physics in QCD, are briefly described. The electroweak symmetry-breaking, Strong CP conservation, and el…
Superradiance around Rotating Dilatonic Black Hole
Jun-ichirou Koga, Kei-ichi Maeda
We consider a superradiance effect around rotating dilatonic black holes. We analyze two cases: one is an exact solution with the coupling constant , which effective ac…
Non-Abelian Black Holes and Catastrophe Theory I : Neutral Type
Takashi Torii, Kei-ichi Maeda, Takashi Tachizawa
We re-analyze the globally neutral non-Abelian black holes and present a unified picture, classifying them into two types; Type I (black holes with massless non-Abelian field) and…
Finding Principal Null Direction for Numerical Relativists
Laurens Gunnarsen, Hisa-aki Shinkai, Kei-ichi Maeda
We present a new method for finding principal null directions (PNDs). Because our method assumes as input the intrinsic metric and extrinsic curvature of a spacelike hypersurface,…
Exponential behavior of a quantum system in a macroscopic medium
Hiromichi Nakazato, Mikio Namiki, Saverio Pascazio
An exponential behavior at all times is derived for a solvable dynamical model in the weak-coupling, macroscopic limit. Some implications for the quantum measurement problem are di…