Understanding physical mechanisms relies on the accurate determination of fundamental constants, although inherent limitations in experimental techniques introduce uncertainties into these measurements. This paper explores the uncertainties associated with measuring the fine-structure constant ($α$) and the proton-to-electron mass ratio ($μ$) using observed fast radio bursts (FRBs). We select 50 localized FRBs to quantify the effects of varying this fundamental coupling on the relation between dispersion measure and redshift. By leveraging independent measurements of dispersion measures and redshifts of these FRBs, we constrain the uncertainties in $α$ and $μ$ approximately to $Δα/α=1.99\times 10^{-5}$ and $Δμ/μ=-1.00\times 10^{-5}$ within the standard $Λ$CDM cosmological framework. Remarkably, these constraints improve nearly an order-of-magnitude when considering a dynamical dark energy model. This investigation not only yields one of the most stringent constraints on $α$ and $μ$ to date but also emphasizes the criticality of accounting for the energy scale of the system when formulating constraints on fundamental parameters.
Unveiling the spectral morphological division of fast radio bursts with CHIME/FRB Catalog 2
College of Sciences, Northeastern University（东北大学理学院）；National Astronomical Observatories, Chinese Academy of Sciences（中国科学院国家天文台）；School of Astronomy and Space Science, University of Chinese Academy of Sciences（中国科学院大学天文与空间科学学院）；College of Physics and Electronic Information Engineering, Guilin University of Technology（桂林理工大学物理与电子工程学院）；College of Mathematics and Statistics, Liaoning University（辽宁大学数学与统计学院）
Synergy of short gamma ray burst and gravitational wave observations: Constraining the inclination angle of the binary and possible implications for off-axis gamma ray bursts
Constraining the Neutron Star Radius with Joint Gravitational-Wave and Short Gamma-Ray Burst Observations of Neutron Star-Black Hole Coalescing Binaries
Constraining the Baryon Fraction in Extragalactic Diffuse Ionized Gas with 124 Localized Fast Radio Bursts
Hunan Normal University（湖南师范大学）；Purple Mountain Observatory, Chinese Academy of Sciences（中国科学院紫金山天文台）；University of Science and Technology of China（中国科学技术大学）
Prospects of LIGO for constraining inclination of merging compact binaries associated with three-dimensionally localized short-hard GRBs
我们研究了通过探测与三维局部（方向和距离）短硬伽马射线暴相关的引力波来限制合并致密双星倾角的方法的前景。我们利用这两个观测的协同作用，我们的方法甚至可以应用于单个干涉仪。对于近正面双星，只要距离估计的误差可以忽略，倾角$I$可以限制在1-1/SNR < cosI \le 1（SNR：引力波探测的信噪比）的范围内。这种方法将有助于我们研究短硬爆发的性质，包括最近的观测表明的潜在准直喷流状结构。
