Incompatibility of gravity theories with auxiliary fields with the standard model

Incompatibility of gravity theories with auxiliary fields with the standard model
复制标题

带有辅助场的重力理论与标准模型的不兼容性

DOI:
10.1103/physrevd.109.044002
复制
发表时间:
2024
期刊:
影响因子:
5
通讯作者:
Ventagli G
Ventagli G
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Ventagli G

文献摘要

参考文献

相似文献

带有辅助场的引力理论特别令人感兴趣,因为它们能够绕过洛夫洛克定理,同时避免引入新的自由度。这类理论在修正的爱因斯坦方程中引入了应力-能量张量的导数。场方程的这种特殊结构被证明会导致恒星表面的时空奇点。在这里,我们集中在另一个问题困扰重力理论与辅助领域。我们表明,这样的理论一般可以引入参数大偏差的标准模型,除非严格约束的参数的理论,防止他们在大尺度上产生显着的现象。我们首先考虑Palatinigravity的特殊情况,以澄清以前在参考文献[1]中得到的结果。我们表明,物质场满足标准模型场方程,该方程仅在树的水平上减少到由广义相对论在局部框架中预测的那些,而在更高阶的微扰理论中,它们受到从重力部门渗透的校正的影响,而不管考虑的具体模型。最后,我们表明,这是一个更普遍的问题,影响理论与辅助领域连接到相同的条款负责表面奇点的外观。
Theories of gravity with auxiliary fields are of particular interest since they are able to circumvent Lovelock’s theorem while avoiding the introduction of new degrees of freedom. This type of theories introduces derivatives of the stress-energy tensor in the modified Einstein equation. This peculiar structure of the field equations was shown to lead to spacetime singularities on the surface of stars. Here we focus on yet another problem afflicting gravity theories with auxiliary fields. We show that such theories can generically introduce parametrically large deviations to the Standard Model unless one severely constrains the parameters of the theory, preventing them to produce significant phenomenology at large scales. We first consider the specific case of Palatinigravity, to clarify the results previously obtained in Ref. . We show that the matter fields satisfy the Standard Model field equations which reduce to those predicted by general relativity in the local frame only at tree level, whereas at higher orders in perturbation theory they are affected by corrections that percolate from the gravity sector regardless of the specificmodel considered. Finally, we show that this is a more general issue affecting theories with auxiliary fields connected to the same terms responsible for the appearance of surface singularities.
重力场和标量场
DOI: 10.1007/978-3-319-10070-8_1
发表时间: 2014
期刊: Lecture Notes in Physics
影响因子: --
作者:
T. Sotiriou
通讯作者: T. Sotiriou
DOI: 10.1088/1367-2630/8/12/323
发表时间: 2006
影响因子: 3.3
作者:
S. Carroll;I. Sawicki;A. Silvestri;M. Trodden
通讯作者: M. Trodden
帕拉蒂尼 f(R) 引力中多变球体的不可行定理
DOI: 10.1088/0264-9381/25/6/062001
发表时间: 2007
影响因子: 3.5
作者:
E. Barausse;T. Sotiriou;J. Miller
通讯作者: J. Miller
洛夫洛克引力处于帕拉蒂尼和公制公式的十字路口
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
Q. Exirifard;M. Sheikh
通讯作者: M. Sheikh
DOI: --
发表时间: 2023
影响因子: 5.5
作者:
Christian Dioguardi;A. Racioppi
通讯作者: A. Racioppi