Limits On Gravity-Induced Depolarization Of Light From The White Dwarf Grw+70 Degrees 8247
PHYSICAL REVIEW D(1999)
摘要
We use measurements of the polarization of light from a magnetic white dwarf to impose sharp constraints on the gravity-induced birefringence of space predicted by a broad class of nonmetric gravitation theories. Since gravity-induced birefringence violates the Einstein equivalence principle, our measurements test this foundation of general relativity and other metric gravitation theories in a new setting. [S0556-2821(99)01304-1].
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