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  1. Propagation of light in Schwarzschild geometry
Propagation of light in Schwarzschild geometry
1082 viewed

Propagation of light in Schwarzschild geometry

Khorasani, S

Propagation of light in Schwarzschild geometry

Khorasani, S ; Sharif University of Technology | 2010

1082 Viewed
  1. Type of Document: Article
  2. DOI: 10.1117/12.840470
  3. Publisher: 2010
  4. Abstract:
  5. In this paper, the equivalent medium of Schwarzschild metric is discussed. The corresponding ray-tracing equations are integrated for the equivalent medium of the Schwarzschild geometry, which describes the curved space around a spherically symmetric, irrotational, and uncharged blackhole. We make comparison to the well-known expression by Einstein. While Einstein's estimate is reasonably good for large closest distances of approach to the star, it disregards the optical anisotropy of space. Instead, Virbhadra's estimate which takes the effects of anisotropy of Schwarzschild metric is shown to be more consistent with numerical simulations. Hence, a true physical anisotropy in the velocity of light under gravitational field does exist. We argue that the existence of such an optical anisotropy could be revealed exactly in the same way that the optical interferometry is expected to detect gravitational waves. Therefore, if no optical anisotropy under gravitational fields could be observed, then the possibility of interferometric detection of gravitational waves is automatically ruled out, and vice versa
  6. Keywords:
  7. Equivalent medium theory ; Black holes ; Closest distance ; General Relativity ; Gravitational fields ; Gravitational waves ; Interferometric detection ; Irrotational ; Medium theory ; Numerical simulation ; Optical interferometry ; Ray-tracing equations ; Schwarzschild ; Schwarzschild geometry ; Computer simulation ; Electric field effects ; Electrooptical devices ; Gravity waves ; Interferometry ; Optical anisotropy ; Optoelectronic devices ; Ray tracing ; Relativity ; Stars ; Gravitational effects
  8. Source: Proceedings of SPIE - The International Society for Optical Engineering, 25 January 2010 through 28 January 2010 ; Volume 7597 , 2010 ; 0277786X (ISSN) ; 9780819479938 (ISBN)
  9. URL: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1338122