Articles written in Pramana – Journal of Physics
Volume 62 Issue 3 March 2004 pp 679-682
Pseudoscalar-photon mixing and the large scale alignment of QSO optical polarizations
Pankaj Jain Sukanta Panda S Sarala
We review the observation of large scale alignment of QSO optical polarizations. Alignment is seen in patches of distance scale of order 1 Gpc. We argue that the existence of a hypothetical light pseudoscalar can explain these observations.
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