A nonsingular spacetime defect
A nonsingular spacetime defect
复制标题
非奇异时空缺陷
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
C. Rahmede
中科院分区：
文献类型：
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作者：
F. Klinkhamer;C. Rahmede
构造了标量的手征模型(Skyrme模型)与标准爱因斯坦引力耦合的非奇异定域静态经典解。这个解决方案对应于一个时空缺陷，其构造分三个步骤进行。首先，给出了时空流形上具有非单连通拓扑的解的ANSATZ。其次，得到了约化场方程组的真空精确解。第三，包含物质场，并求出约化场方程组的特定精确解。后一种解具有发散的总能量，但它的存在至少表明具有非单连通拓扑的非奇异缺陷型解在非平凡物质场中是可能的。
A nonsingular localized static classical solution is constructed for standard Einstein gravity coupled to an SO(3) × SO(3) chiral model of scalars (Skyrme model). This solution corresponds to a spacetime defect and its construction proceeds in three steps. First, an Ansatz is presented for a solution with nonsimply connected topology of the spacetime manifold. Second, an exact vacuum solution of the reduced field equations is obtained. Third, matter fields are included and a particular exact solution of the reduced field equations is found. The latter solution has a diverging total energy, but its existence at least demonstrates that a nonsingular defect-type solution having nonsimply connected topology is possible with nontrivial matter fields.
DOI：
10.1142/s0217732313501368
发表时间：
2013
期刊：
arXiv: General Relativity and Quantum Cosmology
影响因子：
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作者：
F.R. Klinkhamer
通讯作者：
F.R. Klinkhamer