Le T D
Division of Applied Physics, Dong Nai Technology University, Bien Hoa City, Vietnam.
Faculty of Engineering, Dong Nai Technology University, Bien Hoa City, Vietnam.
Sci Rep. 2024 Jul 6;14(1):15610. doi: 10.1038/s41598-024-65484-5.
The exploration of potential variations in fundamental physical constants is crucial for testing of Grand Unification Theories (GUTs), which aim to unify the fundamental forces of nature. This study utilizes direct observational tests to explore these variations, offering a deep-look into the universe's distant past. By analyzing high-resolution quasar spectra of HE 0515-4414 and comparing them with laboratory-calibrated Ritz wavelengths, we establish an upper limit on the possible cosmological deviation of the gravitational constant: over cosmic timescales. Our findings provide a novel tool for probing the physical implications of GUTs, contributing to our understanding of fundamental physics.
探索基本物理常数的潜在变化对于检验大统一理论（GUTs）至关重要，这些理论旨在统一自然界的基本力。本研究利用直接观测测试来探索这些变化，深入研究宇宙遥远的过去。通过分析HE 0515 - 4414的高分辨率类星体光谱，并将其与实验室校准的里兹波长进行比较，我们确定了引力常数在宇宙时间尺度上可能的宇宙学偏差的上限。我们的发现为探究大统一理论的物理意义提供了一种新工具，有助于我们对基础物理学的理解。
