热门
Searches for the role of spin and polarization in gravity
文献类型：期刊论文
| 作者 | Ni, Wei-Tou1,2 |
| 刊名 | REPORTS ON PROGRESS IN PHYSICS
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 73期号:5页码:056901’ |
| 关键词 | POINCARE GAUGE-THEORY NEWTONIAN GRAVITATIONAL CONSTANT EQUIVALENCE PRINCIPLE EXPERIMENT SPACE-TIME TORSION LOCAL LORENTZ INVARIANCE COMPREHENSIVE 1907 ESSAY PROBE WMAP OBSERVATIONS LONG-RANGE INTERACTION DISTANT RADIO-SOURCES TESTING CPT SYMMETRY |
| ISSN号 | 0034-4885 |
| 英文摘要 | Spin is fundamental in physics. Gravitation is universal. Searches for the role of spin in gravitation dated before the firm establishment of the electron spin in 1925. Since mass and spin or helicity in the case of zero mass are the only invariants of the Poincare e group and mass participates in universal gravitation, these searches are natural steps to pursue. Here we review both the theoretical and experimental efforts in searching for the role of spin/polarization in gravitation. We discuss torsion, Poincare gauge theories, teleparallel theories, metric-affine connection theories and pseudoscalar (axion) theories. We discuss laboratory searches for electron and nucleus spin couplings-the weak equivalence principle experiments for polarized bodies, the finite-range spin-coupling experiments, the spin-spin coupling experiments and the cosmic-spin coupling experiments. The role played by angular momentum and rotation is explicitly discussed. We discuss astrophysical and cosmological searches for photon-polarization coupling. An investigation on the implications and interrelations of equivalence principles led to a possible pseudoscalar or vector interaction, and led to the proposal of weak equivalence principle II (WEP II) which includes rotation in the universal free-fall motion. Evidence for WEP II is discussed and compiled. Cosmological searches for photon-polarization coupling test the possibility of violation of Einstein's equivalence principle and the existence of cosmic pseudoscalar/vector interaction and may reveal a potential influence to our presently observed universe from a larger arena. In relativistic gravity, there is a Lense-Thirring frame dragging on a rotating body with angular momentum. Analogous to gyromagnetic ratio in electromagnetism, one can define gyrogravitational ratio. A profound search for the role of spin in gravitation is to measure the gyrogravitational ratio of particles. This could lead us to probe and understand the microscopic origins of gravity. We discuss the strategies to perform such experiments. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | POINCARE GAUGE-THEORY ; NEWTONIAN GRAVITATIONAL CONSTANT ; EQUIVALENCE PRINCIPLE EXPERIMENT ; SPACE-TIME TORSION ; LOCAL LORENTZ INVARIANCE ; COMPREHENSIVE 1907 ESSAY ; PROBE WMAP OBSERVATIONS ; LONG-RANGE INTERACTION ; DISTANT RADIO-SOURCES ; TESTING CPT SYMMETRY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000276411200003 |
| 公开日期 | 2011-11-23 |
| 源URL | [http://159.226.72.40/handle/332002/1179]  |
| 专题 | 紫金山天文台_历算和天文参考系研究团组 |
| 作者单位 | 1.Natl Tsing Hua Univ, Dept Phys, Ctr Gravitat & Cosmol, Hsinchu 30013, Taiwan 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ni, Wei-Tou. Searches for the role of spin and polarization in gravity[J]. REPORTS ON PROGRESS IN PHYSICS,2010,73(5):056901’. |
| APA | Ni, Wei-Tou.(2010).Searches for the role of spin and polarization in gravity.REPORTS ON PROGRESS IN PHYSICS,73(5),056901’. |
| MLA | Ni, Wei-Tou."Searches for the role of spin and polarization in gravity".REPORTS ON PROGRESS IN PHYSICS 73.5(2010):056901’. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。