High-precision test of isotropy of light propagation using actively rotated optical resonators

使用主动旋转光学谐振器高精度测试光传播的各向同性

• 批准号: 19760781
• 负责人: Professor Stephan Schiller, Ph.D.
• 金额: --
• 依托单位: Institut für Experimentalphysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/19760781?language=en
• 关键词: precision; test; isotropy; light; propagation

Local Lorentz Invariance (LLI) is a fundamental symmetry of nature that has until now experimentally been proven to be valid to a high degree. However, it is not known if LLI is strictly or only approximately valid. If a violation of LLI is found to exist, its detailed characterization could provide input for a fundamental theory of all forces. From the theoretical point of view, a violation of LLI is regarded as possible and models describing it have been proposed. For this reason there are worldwide efforts to perform more accurate experimental tests both on particles and on photons. Recently, we have performed the most precise (by a factor of 10) test of LLI for photons (Antonini et al., 2005), reaching the level (c/c < 6 ¿ 10-16.It is important to further improve this level by a few orders, since according to theoretical arguments, a possible level of LLI violation is given by the fundamental ratio Mw/Mplanck ( 1 ¿ 10-I7, where MW is the mass of the gauge bosons of the electroweak interaction. Our proposed experiment provides both the first and a strong test of Lorentz violation for photons (and non-spin contribution due to electrons) at this level.Within the proposed 3-year project we expect to:¿ improve the limits for a possible anisotropy of the velocity of light by a factor of 1000 to the level (c/c < 6 ¿ 10-19¿ measure 8 coefficients of the Standard Model extension theory with an accuracy between 100 and 1000 times higher than the currently best results, reaching a level of up to 2 ¿ 10-18.The experiment will be the first worldwide to explore LLI for photons at this level.The techniques we will develop will also make a significant contribution toward the development of ultrastable lasers suitable for next-generation optical atomic clocks.

局部洛伦兹局部不变性（LLI）是自然的基本对称性，到目前为止，在实验中证明在高度上是有效的。但是，尚不清楚LLI是严格的还是仅仅有效的。如果发现存在违反LLI的情况，则其详细特征可以为所有力量的基本理论提供意见。从理论的角度来看，被认为是对LLI的侵犯，并提出了描述它的模型。因此，全世界都在努力对粒子和照片进行更准确的实验测试。最近，我们对照片进行了最精确的LLI测试（Antonini等，2005），达到了水平（C/C <6€10-16。10-16。对于通过几个订单进一步提高该水平很重要，因为根据理论参数，LLI的质量是基本的iSPAILE the Isplio the-efio iisem rew-ww for lli sw/plapio mm sw y/pliom mw sw ew sw/sw ew sw/sw sw sw/sw sw ews sw/sw ew sw/sw yw。我们提出的实验的仪表玻色子在此级别上提供了对洛伦兹违反照片（以及由于电子引起的非旋转贡献）的第一个和强烈的测试。在拟议的3年项目中，我们期望的是：»提高了1000级别的co effers velocients coefter的限制。模型扩展理论的精度比当前最佳结果高100至1000倍，达到2°10-18的水平。实验将是全球范围内第一个在此级别上探索LLI的lli。我们将开发的技术还将为适用于下一代的光学态度的超强激光发育做出重要贡献。