论文标题
常规的黑洞，无奇异性的宇宙和幻影量表过渡
Regular black holes, universes without singularities, and phantom-scalar field transitions
论文作者
论文摘要
我们考虑了消除宇宙学奇异性的程序，类似于辛普森（Simpson）和维塞尔（Visser）在最近的论文中提出的，以构建常规黑洞。结果表明，通过在平坦的Friedmann宇宙中施加非单明的宇宙演化，充满了最小耦合的标量场，我们获得了标准标量场和其幻影对应物之间的过渡。在这种情况下，标量场的电势具有尖端类型的非分析性。在各向异性bianchi i宇宙的情况下，该结果也很容易复制。我们还发现了爱因斯坦方程的球形对称静态溶液，没有奇异性，并且由标量场维持。
We consider a procedure of elimination of cosmological singularities similar to that suggested in the recent paper by Simpson and Visser for the construction of regular black holes. It is shown that by imposing a non-singular cosmological evolution with a bounce in a flat Friedmann universe filled with a minimally coupled scalar field, we obtain a transition between the standard scalar field and its phantom counterpart. In this case, the potential of the scalar field has a non-analyticity of the cusp type. This result is also readily reproduced in the case of an anisotropic Bianchi I universe. We have also found a spherically symmetric static solution of the Einstein equations, free of singularities and sustained by a scalar field.
