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Chinese Physics Letters Volume 25 Number 5 Create an alert RSS this journal

Ye Xing-Hao and Lin Qiang 2008 Chinese Phys. Lett. 25 1571 doi:10.1088/0256-307X/25/5/014

Inhomogeneous Vacuum: An Alternative Interpretation of Curved Spacetime

Ye Xing-Hao1 and Lin Qiang1

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Abstract References

GENERAL

The strong similarities between the light propagation in a curved spacetime and that in a medium with graded refractive index are found. It is pointed out that a curved spacetime is equivalent to an inhomogeneous vacuum for light propagation. The corresponding graded refractive index of the vacuum in a static spherically symmetrical gravitational field is derived. This result provides a simple and convenient way to analyse the gravitational lensing in astrophysics.


PACS

04.62.+v Quantum fields in curved spacetime

98.62.Sb Gravitational lenses and luminous arcs

95.30.Sf Relativity and gravitation

Subjects

Gravitation and cosmology

Astrophysics and astroparticles

Dates

Issue 5 (May 2008)

Received 14 January 2008



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