426 citations · 5.4k across the 194 of their papers we have counts for
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astro-ph2008★ 44 cited
Large-scale magnetic fields from inflation due to Chern-Simons-like effective interaction
K. Bamba, C. Q. Geng, S. H. Ho
We discuss the generation of large-scale magnetic fields due to the breaking of the conformal invariance in the electromagnetic field through the -even dimension-six Chern-Sim…
astro-ph2007★ 6 cited
CPT conserving cosmological birefringence
C. Q. Geng, S. H. Ho, J. N. Ng
We demonstrate that the cosmological birefringence can arise from CPT conserving effect, originated from the CPT-even dimension-six Chern-Simons-like term. We show that a sizable r…
astro-ph2007★ 6 cited
Cosmological birefringence induced by neutrino current
C. Q. Geng, S. H. Ho, J. N. Ng
We review our recent work on the cosmological birefringence. We propose a new type of effective interactions in terms of the -even dimension-six Chern-Simons-like term to gene…