论文标题
重力bremsstrahlung,在孟沃斯基后扩张中具有潮汐作用
Gravitational Bremsstrahlung with tidal effects in the post-Minkowskian expansion
论文作者
论文摘要
我们使用有效的现场理论世界方法,计算了两个无旋转物体在两个无旋转物体的散射过程中,以$ g $的领先顺序和所有顺序在速度的所有顺序下散发出的四弹药和能量通量的质量和当前的四极潮汐校正。特别是,我们得出了由两个物体(包括潮汐场)和直接空间中的波形产生的保守应力能量张量与重力线性耦合。使用散射振幅技术求解积分。我们表明,我们的表达与现有的结果一致,直到纽顿后扩展中的近代临时顺序。
We compute the mass and current quadrupole tidal corrections to the four-momentum and energy flux radiated during the scattering of two spinless bodies, at leading order in $G$ and at all orders in the velocities, using the effective field theory worldline approach. In particular, we derive the conserved stress-energy tensor linearly coupled to gravity generated by the two bodies, including tidal fields, and the waveform in direct space. The integral is solved using scattering amplitude techniques. We show that our expressions are consistent with existing results up to the next-to-next-to-leading order in the post-Newtonian expansion.