BICEP Club: BICEP II and cosmological birefringence
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Europe/Berlin
Seminar room 2, building 2a (DESY Hamburg)
Seminar room 2, building 2a
DESY Hamburg
Description
cosmological birefringence would lead to a rotation of linear polarisation and may constitute a contamination for the detection of primordial gravitational waves. Such an effect could be due for instance to axion DM or quintessence. See arxiv:1211.5734 and arxiv:1312.7877.
