用引力透镜时间延迟检验洛伦兹不变性破坏
Gravitational lensing time delays as a tool for testing Lorentz Invariance Violation
摘要：
尽管事实上量子引力理论仍然是难以捉摸的，但人们普遍期望它将带来短距离时空泡沫的图像，导致洛伦兹不变性破坏（LIV），例如通过标准相对论色散关系的能量相关修改来表现。研究的一个方向，追求密集的是测量能量依赖的时间到达延迟的光子发射的天体物理源位于宇宙学距离。然而，由于我们忽视了不同能量通道中的固有延迟（在源帧处），或者如最近所示，背景宇宙学的正确模型，这一点得到了缓和。本文提出了一种基于引力透镜的新方法。监测在不同能量通道（例如，光学-低能量和TeV光子）中执行的图像之间的时间延迟可能会揭示由于LIV理论中典型的扭曲色散关系而导致的额外延迟-这是一种不受其他设置中固有的系统学影响的测试。
英文摘要：
Despite the fact that quantum gravity theory still remains elusive, it is generally expected that it will bring the picture of a space-time foam at short distances leading to Lorenz Invariance Violation (LIV) manifested e.g. by energy dependent modification of standard relativistic dispersion relation. One direction of research, pursued intensively is to measure energy dependent time of arrival delays in photons emitted by astrophysical sources located at cosmological distances. This is tempered however by our ignorance of either intrinsic delay (at source frame) in different energy channels or as recently shown, the correct model of the background cosmology. In this paper we propose a new test based on gravitational lensing. Monitoring time delays between images performed in different energy channels (e.g. optical - low energy and TeV photons) may reveal extra delays due to distorted dispersion relation typical in LIV theories - a test which is free from the systematics inherent in other settings.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
