If the universe consisted of domains of matter and antimatter,annihilations of e^(+)-e^(-) at the domain interface in the recombination time would leave an imprint on the x-ray band due to the high redshift.We found f...If the universe consisted of domains of matter and antimatter,annihilations of e^(+)-e^(-) at the domain interface in the recombination time would leave an imprint on the x-ray band due to the high redshift.We found five ROSAT sources with the 0.36keV spectral line,especially the source lRXP J005510-3738.8 has a single sharp spectral line almost without a continuous spectrum.It is hard to be produced by any mechanism except the annihilations of e^(+)-e^(-).展开更多
Quantum cosmology with complexø6 fields at finite temperature for the Vilenkin boundary conditions and Hartle-Hawking boundary conditions has been studied in this paper.The corresponding Wheeler-DeWitt equations ...Quantum cosmology with complexø6 fields at finite temperature for the Vilenkin boundary conditions and Hartle-Hawking boundary conditions has been studied in this paper.The corresponding Wheeler-DeWitt equations and the Universe wave functions are obtained.At the same time,the probability density distribution is calculated and the effect of temperature on probability density distribution is found.展开更多
This paper suggests an effective method to detect the antimatter domain by means of x-ray background radiation if the universe is Symmetric.The photons produced by the annihilation of electron-positron and proton-anti...This paper suggests an effective method to detect the antimatter domain by means of x-ray background radiation if the universe is Symmetric.The photons produced by the annihilation of electron-positron and proton-antiproton on the last scattering surface are considered.A possible observational figure is described also.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No.19573007.
文摘If the universe consisted of domains of matter and antimatter,annihilations of e^(+)-e^(-) at the domain interface in the recombination time would leave an imprint on the x-ray band due to the high redshift.We found five ROSAT sources with the 0.36keV spectral line,especially the source lRXP J005510-3738.8 has a single sharp spectral line almost without a continuous spectrum.It is hard to be produced by any mechanism except the annihilations of e^(+)-e^(-).
基金Supported by the National Natural Science Foundation of China。
文摘Quantum cosmology with complexø6 fields at finite temperature for the Vilenkin boundary conditions and Hartle-Hawking boundary conditions has been studied in this paper.The corresponding Wheeler-DeWitt equations and the Universe wave functions are obtained.At the same time,the probability density distribution is calculated and the effect of temperature on probability density distribution is found.
基金Supported by the National Natural Science Foundation of China under Grant No.19573007the Natural Science Foundation of Jiangsu Province under Grant No.BK95068111.
文摘This paper suggests an effective method to detect the antimatter domain by means of x-ray background radiation if the universe is Symmetric.The photons produced by the annihilation of electron-positron and proton-antiproton on the last scattering surface are considered.A possible observational figure is described also.
