arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.2443gr-qcastro-ph.HEhep-th
收藏

物质满足零能条件的非最小曲率-物质耦合虫洞

Nonminimal curvature-matter coupled wormholes with matter satisfying the null energy condition

Nadiezhda Montelongo Garcia, Francisco S. N. Lobo

摘要:

最近,精确的解决方案的虫洞几何形状支持的非最小曲率物质耦合被发现,其中的非最小耦合最大限度地减少了违反零能量条件的正常物质在喉部。在这份简短的报告中,我们提出了一个解决方案,其中正常物质满足喉部的能量条件,并且是负责零能量条件违反的非最小耦合的高阶曲率导数,因此支持相应的虫洞几何形状。为了简单起见,我们考虑一个线性R非最小曲率物质耦合和一个明确的单调递增函数的能量密度。因此,所发现的解不是渐近平坦的,但原则上可以与外部真空解相匹配。

英文摘要:

Recently, exact solutions of wormhole geometries supported by a nonminimal curvature-matter coupling were found, where the nonminimal coupling minimizes the violation of the null energy condition of normal matter at the throat. In this brief report, we present a solution where normal matter satisfies the energy conditions at the throat and it is the higher order curvature derivatives of the nonminimal coupling that is responsible for the null energy condition violation, and consequently for supporting the respective wormhole geometries. For simplicity, we consider a linear R nonmiminal curvature-matter coupling and an explicit monotonically increasing function for the energy density. Thus, the solution found is not asymptotically flat, but may in principle be matched to an exterior vacuum solution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑