Cosmological implications of axion : oscillation, resonant conversion, and tachyonic instability액시온의 우주론적 함의 : 진동, 공명 변환, 그리고 타키온적 불안정성

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We discussed the cosmological role of the ALP conversion physics such as coherent oscillation, resonant conversion, and tachyonic instability. We showed that by introducing dark photon coupling and background dark magnetic field, spectral modulations in some galactic pulsars can be explained without conflict with existing astrophysical and cosmological constraints. We also discussed how such coupling can alleviate the CMB constraint on resonant photon conversion and studied its implication. Dark magnetic field generation mechanism with tachyonic instability and application to the cosmological constant problem is presented.
Advisors
Semertzidis, Yannisresearcher세메르트지디스, 야니스researcher
Description
한국과학기술원 :물리학과,
Publisher
한국과학기술원
Issue Date
2019
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 물리학과, 2019.8,[vi, 85 p. :]

Keywords

ALP▼adark photon▼aoscillation▼aresonant conversion▼atachyonic instability▼alattice simulation; 액시온▼a암흑광자▼a진동▼a공명변환▼a타키온적 불안정성▼a격자 시뮬레이션

URI
http://hdl.handle.net/10203/283191
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=871348&flag=dissertation
Appears in Collection
PH-Theses_Ph.D.(박사논문)
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