论文标题
扩展理论测试一般相对论:LIGO和参数化理论
Expanding theory testing in general relativity: LIGO and parametrized theories
论文作者
论文摘要
Caltech和MIT操作的LiGo(激光干涉仪重力波观测站)对重力波的多次检测,已被称为一个世纪前确认爱因斯坦的预测,该预测将被检测为散发时间的引力波。 Yunes和Pretorius(2009)研究了Ligo的基于模板的搜索是否编码基本假设,尤其是假设一般相对性的背景理论是对搜索中检测到现象的准确描述的假设。他们构建了响应中的参数化后源(PPE)框架,该框架扩大了这些假设,并允许在更灵活的假设下进行更广泛的测试。他们的方法与Carnap(1936),Hempel(1969)和Stein(1992,1994)中发现的确认和测试的工作一致,并具有以下共同的原则:确认与测试不同,并且违反直觉,修订理论的正式基础可以使其更广泛地具有经验性测试。这些观点鼓励一种方法,根据该方法可以抽象地进行理论,以定义一般结构的家庭以进行测试。随着PPE框架和相关方法的发展,多门徒天文学是对一般相对性理论框架的限制和潜力进行深入推理的催化剂。
The multiple detections of gravitational waves by LIGO (the Laser Interferometer Gravitational-Wave Observatory), operated by Caltech and MIT, have been acclaimed as confirming Einstein's prediction, a century ago, that gravitational waves propagating as ripples in spacetime would be detected. Yunes and Pretorius (2009) investigate whether LIGO's template-based searches encode fundamental assumptions, especially the assumption that the background theory of general relativity is an accurate description of the phenomena detected in the search. They construct the parametrized post-Einsteinian (ppE) framework in response, which broadens those assumptions and allows for wider testing under more flexible assumptions. Their methods are consistent with work on confirmation and testing found in Carnap (1936), Hempel (1969), and Stein (1992, 1994), with the following principles in common: that confirmation is distinct from testing, and that, counterintuitively, revising a theory's formal basis can make it more broadly empirically testable. These views encourage a method according to which theories can be made abstract, to define families of general structures for the purpose of testing. With the development of the ppE framework and related approaches, multi-messenger astronomy is a catalyst for deep reasoning about the limits and potential of the theoretical framework of general relativity.