SEMI-CLASSICAL GRAVITATIONAL EFFECTS NEAR COSMIC STRING IN LYRAGEOMETRY

Fizika B (Zagreb)

P. GHOSH¹  S. MAL¹  S. SHEKHAR¹  T. RAY¹  F. RAHAMAN¹ 

关键词: cosmic string;    gravitational effects;    semi-classical approach;    Lyra geometry;   

DOI  :  

学科分类：物理（综合）

来源: Fizika B: a journal of experimental and theoretical physics

【 摘 要 】

In recent past, W. A. Hiscock [Phys. Lett. B 188 (1987) 317] studied the semi-classicalgravitational effects near cosmic strings. He obtained the vacuum expectation value of thestress-energy tensor of an arbitrary collection of conformal massless free-quantum fields(scalar, spinor and vectors) in the presence of a static, cylindrically symmetric cosmicstring. With this stress-energy tensor, we study the semi-classical gravitational effectsof a cosmic string in the context of Lyra geometry.

【 授权许可】

Unknown