CHINESE ACAD SCI,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA
; NANKAI UNIV,DEPT PHYS,TIANJIN 300071,PEOPLES R CHINA
The effects of a new CP-violating source originated from quantum gravity are studied systematically for the B system. A comparison with the K system is presented. It is found that in terms of the parameter values obtained in the K system the observational prospect of such effects in the B system is not optimistic even at the B factory.