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Deflection of null and time-like geodesics in topological defects space-time geometry | ||
| Journal of Theoretical and Applied Physics | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 09 آبان 1402 | ||
| نوع مقاله: Scientific Research Manuscript | ||
| شناسه دیجیتال (DOI): 10.57647/J.JTAP.2024.1801.06 | ||
| نویسندگان | ||
Faizuddin Ahmed  ؛ Abdul Kayum؛ Monjur Alom Choudhury؛ Mahmudul Hassan
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| Department of Physics, University of Science and Technology Meghalaya, Meghalaya, India. | ||
| چکیده | ||
| In this research, we investigate the bending of photon light and/or time-like geodesics within the context of four-dimensional space-time geometry, specifically in the presence of topological defects. These topological defects manifest as cosmic string space-time configurations, encompassing screw dislocation, spiral dislocation, and spacelike dislocation. Our primary objective is to determine the extent of deflection experienced by light-like and time-like geodesics and analyze how this deflection is affected by the cosmic string parameter, screw dislocation parameter, and spacelike dislocation parameter. To accomplish this, we employ a derivation technique that centers on the observation that photon rays (light-like geodesics) and/or time-like geodesics follow paths parallel to the z-axis while maintaining a constant radius along the cylinder. | ||
| کلیدواژهها | ||
| Topological defects؛ Geodesics motion؛ Gravitational lensing | ||
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آمار تعداد مشاهده مقاله: 105 |
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