منابع مشابه
Axion miniclusters and Bose stars.
Evolution of inhomogeneities in the axion field around the QCD epoch is studied numerically, including for the first time important nonlinear effects. It is found that perturbations on scales corresponding to causally disconnected regions at T ∼ 1GeV can lead to very dense axion clumps, with present density ρa > ∼ 10 g cm. This is high enough for the collisional 2a → 2a process to lead to Bose–...
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متن کاملAnomalous Axion Interactions and Topological Currents in Dense Matter
Recently an effective Lagrangian for the interactions of photons, Nambu-Goldstone bosons and superfluid phonons in dense quark matter has been derived using anomaly matching arguments. In this paper we illuminate the nature of certain anomalous terms in this Lagrangian by an explicit microscopic calculation. We also generalize the corresponding construction to introduce the axion field. We deri...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2016
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.117.121801