Electromagnetic Memory Effect Induced by Axion Dark Matter

Abstract

Memory effects of gravitational waves from astronomical events or primordial universe might have the information of new physics. It is intriguing to observe that the memory effect exists in electrodynamics as a net momentum kick, while the memory effect in gravity appears as a net relatively displacement. In particular, Winicour has shown that the B-mode memory, which characterizes parity odd global distribution of memory, does not exist. We study the memory effect in axion electrodynamics and find that the B-mode memory effect can exist provided the existence of coherently oscillating axion background field. Moreover, we examine the detectability of the axion dark matter using this effect. We also argue the existence of the B-mode gravitational memory effect in the presence of the axion dark matter.

11 pages, 2 figures

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• Detecting gravitational-wave memory with LIGO: implications of GW150914
• The Cosmological Memory Effect
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• Gravitational Wave Memory: A New Approach to Study Modified Gravity
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Cited by in corpus (3)

• Electromagnetic waves propagating in the string axiverse
• Gravitational wave memory in conformally flat spacetimes
• Memory effect in Yang-Mills theory with an axion