String Cloud and Domain Walls with Quark Matter in Lyra Geometry

• 作者: Ashwini Kumar Biswal Kamal Lochan Mahanta
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: COSMIC Strings Domain Walls QUARK MATTER Lyra GEOMETRY
• 年，卷（期）: 2012,（10）
• 页码范围: 1479-1486
• 页数: 8页
• 分类号: O1

摘要

We have constructed cosmological models for string cloud and domain walls coupled with quark matter in Lyra geometry. For this purpose we have solved the field equations using anisotropy feature of the universe, special law of variation for Hubble’s parameter proposed by Berman [78] which yields constant deceleration parameter;and time varying displacement field . Further some properties of the obtained solutions are discussed.