Relic Gravitational Waves and Trans-Planckian Physics  

作　　者：吴普训 余洪伟 

机构地区：[1]Department of Physics and Institute of Physics, Hunan Normal University, Changsha 410081

出　　处：《Chinese Physics Letters》2005年第9期2161-2164,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10375023, the Program for NCET （No 04-0784）, and the Key Project of the Ministry of Education of China （No 205110）.

摘　　要：Assuming that the effects of trans-Planckian physics are encoded in the choice of initial conditions, mode by mode, for vacuum states at the time when its wavelength becomes equal to the scale of new physics （Planck＇s scale for example）, we calculate the spectrum of energy densities of total relic gravitational waves from de Sitter inflation to the matter dominated universe. Our results show that the spectrum acquires corrections due to the consideration of trans-Planckian physics and these corrections depend sensitively on the vacuum state that was actually realized at the beginning of the inflation.Assuming that the effects of trans-Planckian physics are encoded in the choice of initial conditions, mode by mode, for vacuum states at the time when its wavelength becomes equal to the scale of new physics （Planck＇s scale for example）, we calculate the spectrum of energy densities of total relic gravitational waves from de Sitter inflation to the matter dominated universe. Our results show that the spectrum acquires corrections due to the consideration of trans-Planckian physics and these corrections depend sensitively on the vacuum state that was actually realized at the beginning of the inflation.

关 键 词：CHARGED TEST PARTICLE VACUUM FLUCTUATIONS INFLATION SPECTRUM UNIVERSE MOTION SCALE 

分 类 号：O314[理学—一般力学与力学基础] O433[理学—力学]