Discontinuity problem in the linear stability analysis of thin-shell wormholes

被引：12

作者：

Forghani, S. Danial ^{[1
]}

Mazharimousavi, S. Habib ^{[1
]}

Halilsoy, Mustafa ^{[1
]}

机构：

[1] Eastern Mediterranean Univ, Fac Arts & Sci, Dept Phys, Via Mersin 10, Famagusta, North Cyprus, Turkey

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2019年 / 134卷 / 07期

关键词：

TRAVERSABLE WORMHOLES; BLACK-HOLES;

D O I：

10.1140/epjp/i2019-12771-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the infinite discontinuity points of the stability diagram in thin-shell wormholes. The square of the speed of sound beta(2)(0), which is expressed in terms of pressure and energy density at equilibrium on the throat, arises with a divergent amplitude. As this is physically non-acceptable, we revise the equation of state, such that by fine-tuning of the pressure at static equilibrium, which is at our disposal, we eliminate such singularity. The efficacy of the method is shown in Schwarzschild, extremal Reissner-Nordstrom and dilaton thin-shell wormholes.

引用

页数：10

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