The Journal of the Convergence on Culture Technology (문화기술의 융합)

The International Promotion Agency of Culture Technology (국제문화기술진흥원)
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Propagation of electromagnetic and gravitational waves in braneworld

전자기파와 고차원 중력파 전달 고찰

  • Received : 2018.10.13
  • Accepted : 2019.01.06
  • Published : 2019.02.28
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Abstract

Considering spherically symmetric spacetimes embedded in a 5-dimensional static Lorentzian manifold, within the large distance limit of DGP model, we study null geodesic equations. We discuss possible relations of particles following the geodesics with the gravitational waves detected recently, in comparison with the electromagnetic waves propagaing in these brane spacetimes.

5 차원 정적 다양체에 내재된 구형 대칭적인 시공간을 고려하여, 변형된 중력 이론의 하나인 DGP (Dvali, Gabadadze, and Porrati) 모형의 원거리 근사에서 측지선 방정식을 연구 하였다. 널(null) 측지선 방정식을 분석하여, 4차원 시공간에서 입자들의 유효 질량과 전달 속력을 구했다. 아인슈타인 일반상대론적 중력 이론을 규명하게 되는 중요한 업적 중에 하나인, 최근에 관측된 중력파 발견의 결과들과 측지선을 따르는 입자들의 관계성을 논의하였다. 4차원 시공간에서 전파되는 전자기파의 전달과 비교 검토 하였다.

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