IPB University Logo

SCIENTIFIC REPOSITORY

IPB University Scientific Repository collects, disseminates, and provides persistent and reliable access to the research and scholarship of faculty, staff, and students at IPB University

AI Repository
 
Building and Categories


      View Item 
      •   IPB Repository
      • Dissertations and Theses
      • Undergraduate Theses
      • UT - Faculty of Mathematics and Natural Sciences
      • UT - Physics
      • View Item
      •   IPB Repository
      • Dissertations and Theses
      • Undergraduate Theses
      • UT - Faculty of Mathematics and Natural Sciences
      • UT - Physics
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Analisis Tensor Energi-Momentum Wormhole Morris-Thorne 4+1 Dimensi dengan Variasi Fungsi-Bentuk

      Thumbnail
      View/Open
      Cover (656.0Kb)
      Fulltext (982.8Kb)
      Lampiran (384.4Kb)
      Date
      2026
      Author
      Aulia, Safitri
      Alatas, Husin
      Faozan
      Metadata
      Show full item record
      Abstract
      Model wormhole Morris-Thorne mensyaratkan materi eksotik yang melanggar Null Energy Condition (NEC) di sekitar throat untuk menjaga struktur tetap terbuka. Penelitian ini merumuskan tensor energi-momentum dalam ruangwaktu 4+1 dimensi dengan asumsi zero-tidal-force untuk menguji kondisi flare-out pada empat variasi fungsi bentuk. Hasil menunjukkan bahwa dimensi ekstra meningkatkan tegangan ruangwaktu secara signifikan, sehingga diperlukan kuantitas materi eksotik yang lebih besar dibandingkan dimensi 3+1. Fungsi bentuk tangen hiperbolik tidak memenuhi syarat flare-out karena energi di sekitar throat bernilai positif. Secara fisis, dominasi non-exotic matter di throat ini tidak mampu menahan tekanan gravitasi dimensi tinggi sehingga struktur wormhole gagal terbentuk. Penambahan dimensi ekstra terbukti memperketat kebutuhan materi eksotik sebagai penopang mutlak guna mencegah keruntuhan geometri.
       
      The Morris-Thorne wormhole model necessitates the presence of exotic matter that violates the Null Energy Condition (NEC) near the throat to maintain an open structure. This study formulates the energy-momentum tensor within a 4+1 dimensional spacetime under the zero-tidal-force assumption to evaluate the flare-out condition across four variations of shape functions. The results demonstrate that the addition of an extra dimension significantly increases spacetime tension, thereby requiring a greater quantity of exotic matter to sustain stability compared to the 3+1 dimensional case. Specifically, the hyperbolic tangent shape function fails to satisfy the flare-out condition as the energy density near the throat remains positive. Physically, the dominance of non-exotic matter at the throat is insufficient to withstand the intensified gravitational pressure of higher dimensions, preventing the formation of a viable wormhole structure. Consequently, the inclusion of an extra dimension strictly reinforces the necessity of exotic matter as an absolute requirement to prevent geometric collapse.
       
      URI
      http://repository.ipb.ac.id/handle/123456789/173329
      Collections
      • UT - Physics [1253]

      Copyright © 2020 Library of IPB University
      All rights reserved
      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
      UIN Syarif Hidayatullah Institutional Repository
      Universitas Jember Digital Repository
        

       

      Browse

      All of IPB RepositoryCollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

      My Account

      Login

      Application

      google store

      Copyright © 2020 Library of IPB University
      All rights reserved
      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
      UIN Syarif Hidayatullah Institutional Repository
      Universitas Jember Digital Repository