Detection of gravitational waves in circular particle accelerators

环形粒子加速器中的引力波探测 II：利用合成数据进行响应分析与参数估计

Detection of gravitational waves in circular particle accelerators II. Response analysis and parameter estimation using synthetic data

本文通过数值模拟SRGO对毫赫兹引力波的响应生成合成数据，采用MCMC进行源参数估计，证明单个SRGO可借助地球自转实现波源天空定位。

Computational Gravitational Dynamics with Modern Numerical Accelerators

We review the recent optimizations of gravitational $N$-body kernels for running them on graphics processing units (GPUs), on single hosts and massive parallel platforms. For each of the two main $N$-body techniques, direct summation and tree-codes, we discuss the optimization strategy, which is different for each algorithm. Because both the accuracy as well as the performance characteristics differ, hybridizing the two algorithms is essential when simulating a large $N$-body system with high-density structures containing few particles, and with low-density structures containing many particles…

利用星载三角形探测器网络搜寻圆极化引力波背景

Circularly Polarized Gravitational Wave Background Search with a Network of Space-borne Triangular Detectors

本文推导了两台星载三角形探测器网络的重叠缩减函数解析公式，评估不同LISA-Taiji构型对宇称破缺圆极化引力波背景的探测能力，发现调整Taiji朝向可使毫赫兹频段灵敏度提升约一个量级，为约束宇称破缺理论提供新机遇。