论文标题
重力波中的重场的痕迹
Traces of a Heavy Field in Gravitational Waves
论文作者
论文摘要
我们讨论了由沉重的观众场引起的重力波（GWS），该场在通货膨胀期间开始振荡。在观众场的振荡期间，其有效质量也可以在某些电势中振荡。这种质量振荡可以共同扩大观众场的波动。我们表明，这些放大的波动可以诱导大型GW，这可以通过未来的引力波观测来研究。即使观众场与重力相互作用除了与其他场没有任何相互作用，也可以产生这种诱导的GW。
We discuss gravitational waves (GWs) induced by a heavy spectator field that starts to oscillate during inflation. During the oscillation of the spectator field, its effective mass can also oscillate in some potentials. This mass oscillation can resonantly amplify the spectator field fluctuations. We show that these amplified fluctuations can induce large GWs, which could be investigated by future gravitational wave observations. This kind of induced GW can be produced even if the spectator field does not have any interaction with other fields except for gravitational interaction.
