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4 papers · 2 filters
Impact of Lorentz Violation on Cosmology
Jiro Soda, Sugumi Kanno
We discuss the impact of Lorentz violation on the cosmology. Firstly, we show that the Lorentz violation affects the dynamics of the chaotic inflationary model and gives rise to an…
Gradient expansion approach to nonlinear superhorizon perturbations
Yoshiharu Tanaka, Misao Sasaki
Using the gradient expansion approach, we formulate a nonlinear cosmological perturbation theory on super-horizon scales valid to , where is the expansion parameter ass…
Classical and quantum radiation from a moving charge in an expanding universe
Hidenori Nomura, Misao Sasaki, Kazuhiro Yamamoto
We investigate photon emission from a moving particle in an expanding universe. This process is analogous to the radiation from an accelerated charge in the classical electromagnet…
Results of the search for inspiraling compact star binaries from TAMA300's observation in 2000-2004
TAMA Collaboration, T. Akutsu
We analyze the data of TAMA300 detector to search for gravitational waves from inspiraling compact star binaries with masses of the component stars in the range 1-3Msolar. In this…