Physical interpretation of Newman-Janis rotating systems. I. A unique family of Kerr-Schild systems
Physical interpretation of Newman-Janis rotating systems. I. A unique family of Kerr-Schild systems
复制标题
纽曼-贾尼斯旋转系统的物理解释。
DOI:
10.1103/physrevd.104.124066
复制
发表时间:
2021
影响因子:
5
通讯作者:
Gondolo, Paolo
中科院分区:
文献类型:
--
作者:
Beltracchi, Philip;Gondolo, Paolo
The Newman-Janis algorithm and its generalizations can be used mathematically to generate rotating solutions from nonrotating spherically-symmetric solutions within general relativity. The energy-momentum tensors of these solutions may or may not represent the same physical system, in the sense of both being a perfect fluid, or an electromagnetic field, or a-term, and so on. In a series of two papers, we compare the structure of the eigenvalues and eigenvectors of the rotating and nonrotating energy-momentum tensors (their Segre types) and look for the existence of equations of state relating the energy density and the principal pressures. Part I covers Kerr-Schild systems, Part II more general systems. We find that there is a unique family of stationary axisymmetric Kerr-Schild systems that obey the same equation of state in both the rotating and nonrotating configurations. This family includes the Kerr and Kerr-Newman black holes, as well as rotating spacetimes whose mass function in the nonrotating limit contains a constrained superposition of a cloud of strings term, a Reissner-Nordstrom term, a cosmological constant term, and a Schwarzschild term. We describe the common equation of state relating energy density and pressure in this family of spacetimes and discuss some of its properties.
登录
查看更多内容
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
I. Dymnikova
通讯作者:
I. Dymnikova
DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
M. Gürses;F. Gürsey
通讯作者:
F. Gürsey
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
B. Carter
通讯作者:
B. Carter
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Harold Erbin
通讯作者:
Harold Erbin
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
N. Ibohal
通讯作者:
N. Ibohal