Radiation reaction for spinning bodies in effective field theory I: Spin-orbit effects
Radiation reaction for spinning bodies in effective field theory I: Spin-orbit effects
复制标题
有效场论中旋转体的辐射反应 I：自旋轨道效应
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Rafael A. Porto
中科院分区：
文献类型：
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作者：
N. T. Maia;C. Galley;A. Leibovich;Rafael A. Porto
我们计算了自旋线性阶对双星系统辐射反应加速和自旋演化的主要后牛顿 (PN) 贡献，该系统进入第四 PN 阶。该计算是根据第一原理，在牛顿-维格纳和协变自旋补充条件下，使用旋转致密物体的有效场论框架进行的。对我们的结果进行了重要的一致性检查，表明由所产生的辐射反作用力引起的能量损失相当于远区的总发射功率，达到所谓的“肖特项”。我们还发现，在这个顺序上，辐射反应对自旋的演化没有净影响。另一篇论文报道了自旋-自旋对辐射反应的贡献。
We compute the leading Post-Newtonian (PN) contributions at linear order in the spin to the radiation-reaction acceleration and spin evolution for binary systems, which enter at fourth PN order. The calculation is carried out, from first principles, using the effective field theory framework for spinning compact objects, in both the Newton-Wigner and covariant spin supplementary conditions. A non-trivial consistency check is performed on our results by showing that the energy loss induced by the resulting radiation-reaction force is equivalent to the total emitted power in the far zone, up to so-called"Schott terms."We also find that, at this order, the radiation reaction has no net effect on the evolution of the spins. The spin-spin contributions to radiation reaction are reported in a companion paper.