BPS极限下Yang-Mills-Higgs场穿过的非阿贝尔虫洞
Non--Abelian Wormholes Threaded by Yang--Mills--Higgs Field in the BPS Limit
摘要：
在爱因斯坦-杨-米尔斯-希格斯理论的Bogomol'nyi-Prasad-Sommerfield（BPS）极限下，我们数值构造了一个由幻影场支持的非阿贝尔虫洞。探测极限为关闭引力时Ellis虫洞背景中的Yang-Mills-Higgs场。当引力存在时，虫洞解具有Yang-Mills-Higgs毛;当引力耦合常数增大时，Ellis虫洞解出现一个分支毛状虫洞解.我们发现，随着引力耦合常数的增大，虫洞的质量和虚场的标量电荷都单调增大。当引力强度超过某一临界值时，虫洞时空具有双喉形。令人惊讶的是，在大引力强度下，虫洞满足零能量条件。我们还简要地讨论了红移因子。
英文摘要：
In the Bogomol'nyi-Prasad-Sommerfield (BPS) limit of Einstein-Yang-Mills-Higgs theory, we construct numerically a non-Abelian wormhole supported by a phantom field. The probe limit is the Yang-Mills-Higgs field in the background of Ellis wormhole when the gravity is switched off. The wormhole solutions possess the Yang-Mills-Higgs hair in the presence of gravity; Thus a branch of hairy wormhole solutions emerge from the Ellis wormhole when the gravitational coupling constant increases. We find that the mass of wormholes and scalar charge of phantom field increase monotonically when the gravitational coupling constant increases. The wormhole spacetime possesses double throat configuration when the gravitational strength exceeds a critical value. Surprisingly, the wormholes satisfy the null energy condition in the large gravitational strength. We also briefly discuss the redshift factor.
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