Electric and magnetic energy at axion haloscopes

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Title
Electric and magnetic energy at axion haloscopes
Author(s)
B. R. Ko; H. Themann; W. Jang; J. Choi; D. Kim; M. J. Lee; J. Lee; E. Won; Yannis K. Semertzidis
Publication Date
2016-12
Journal
PHYSICAL REVIEW D, v.94, no.11, pp.111702 -
Publisher
AMER PHYSICAL SOC
Abstract
We review the electro-magnetic energy at axion haloscopes and find that the electric and the corresponding magnetic energy stored in the cavity modes or, equivalently, the mode dependent electric and magnetic form factors are the same regardless of the position of the cavity inside the solenoid. Furthermore, we extend our argument to the cases satisfying ∇ ⃗ ×B ⃗ external =0 , where B ⃗ external is a static magnetic field provided by a magnet at an axion haloscope. Two typical magnets, solenoidal and toroidal, satisfy ∇ ⃗ ×B ⃗ external =0 ; thus, the electric and the corresponding magnetic energy stored in the cavity modes are always the same in both cases. The energy, however, is independent of the position of the cavity in axion haloscopes with a solenoid, and depends on those with a toroidal magnet. © 2016 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/3031
ISSN
2470-0010
Appears in Collections:
Center for Axion and Precision Physics Research(액시온 및 극한상호작용 연구단) > Journal Papers (저널논문)
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