论文标题
标量调整有效场理论的良好配方
Well-posed formulation of scalar-tensor effective field theory
论文作者
论文摘要
有效的场理论提供了一种参数化强场偏差与一般相对论的参数方式，在黑洞合并中发出的重力波中可能可观察到。为了对此类理论进行合并的数值模拟，有必要以接收良好的初始值公式的形式写入方程。我们研究重力与标量场耦合，包括领先（4衍生）有效的田间理论校正。我们引入了一类新的“修改后的谐波”测量值和量规固定运动方程，以便在弱耦合下，这些方程是强烈的双曲线，因此接受了良好的初始值配方。
Effective field theory provides a way of parameterizing strong-field deviations from General Relativity that might be observable in the gravitational waves emitted in a black hole merger. To perform numerical simulations of mergers in such theories it is necessary that the equations be written in a form that admits a well-posed initial value formulation. We study gravity coupled to a scalar field including the leading (4-derivative) effective field theory corrections. We introduce a new class of "modified harmonic" gauges and gauge-fixed equations of motion, such that, at weak coupling, the equations are strongly hyperbolic and therefore admit a well-posed initial value formulation.
