| 报告摘要： |
The field of fast radio bursts (FRBs) enjoyed a rapid development from both the observational and theoretical frontiers. Coherent curvature radiation as the radiation mechanism for fast radio bursts (FRBs) has been discussed since FRBs were discovered. We study the spectral and polarization properties of repeating FRBs within the framework of coherent curvature radiation by charged bunches in the magnetosphere of a highly magnetized neutron star. There are still something unknown about the narrow band spectrum. Emitted waves are highly linear polarized and polarization angles are flat across the burst envelopes, if the line of sight is confined to the beam within an angle of 1/gamma, while a circular polarization fraction becomes strong for off-beam cases. The spectro-temporal pulse-to-pulse properties can be a natural consequence due to the magnetospheric geometry. We then discuss some possible trigger mechanism of FRB, which should be sudden and violent.
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