论文标题

爱因斯坦 - 加斯 - 邦纳特重力中的标量充电虫洞

Scalarized-charged wormholes in Einstein-Gauss-Bonnet gravity

论文作者

Brihaye, Y., Renaux, J.

论文摘要

Einstein-Maxwell-Klein-Gordon Lagrangian的补充是由真实的标量场与高斯 - 骨网的不变型不变的。在标量场中选择了非最小值耦合函数,作为众所周知的系统的标量多项式多项式。新的相互作用自然会导致违反无效的能量条件,从而使虫洞存在而无需外来物质。 构建了球形对称的,带电的虫洞,并根据非最小耦合常数和电荷的不同选择来确定其存在域。特殊重点是纯粹的二次耦合函数的情况。 一种让人联想到自发标量黑洞的现象发生在虫洞中。与电磁场的相互作用导致了新的虫洞家族,并由不足,足够大的电荷支撑。

The Einstein-Maxwell-Klein-Gordon Lagrangian is supplemented by a non-minimal coupling of the real scalar field to the Gauss-Bonnet invariant. The non minimal coupling function is chosen as a general second degree polynomial in the scalar field for which the system is known to admit hairy black holes. The new interaction leads naturally to a violation of the null energy condition, allowing for wormholes to exist without the need of exotic matter. Spherically symmetric, charged wormholes are constructed and their domain of existence is determined in terms of the different choices of the non-minimal coupling constants and of the electric charge. A special emphasis is set to the case of the purely quadratic coupling function. A phenomenon reminiscent to spontaneously scalarised black holes occurs for wormholes. The interaction with the electromagnetic field leads to new families of wormholes supported by a non-vanishing, large enough, electric charge.

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