Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Zhao, Dehao"'
Autor:
Zhao, Dehao
Symmetric teleparallel gravity (STG) is a gravity theory which takes non-metricity tensor to describe gravity effects. In the STG framework, we study the conformal equivalent scalar-tensor theory of f(Q) model and calculate the cosmological linear pe
Externí odkaz:
http://arxiv.org/abs/2404.16299
Autor:
Rao, Haomin, Zhao, Dehao
The parity violating model based on teleparallel gravity is a competitive scheme for parity violating gravity, which has been preliminary studied in the literature. To further investigate the parity violating model in teleparallel gravity, in this pa
Externí odkaz:
http://arxiv.org/abs/2304.07138
Publikováno v:
Phys. Rev. D 105, 104002 (2022)
Many parity violating gravity models suffer from the ghost instability problem. In this paper, we consider a symmetric teleparallel gravity model that extends the general relativity equivalent model by several parity violating interactions between th
Externí odkaz:
http://arxiv.org/abs/2203.06912
Autor:
Zhang, Guangxin, Cui, Chunge, Lv, Yufeng, Wang, Xiangyang, Wang, Xufang, Zhao, Dehao, Hu, Fenshan, Wen, Xiaoxia, Han, Juan, Liao, Yuncheng
Publikováno v:
In European Journal of Agronomy September 2024 159
Autor:
Zhang, Bo1 (AUTHOR) zbxiha@163.com, Zhao, Dehao1 (AUTHOR), Chen, Changhai2 (AUTHOR) zbxiha@163.com, Li, Jinyang3 (AUTHOR) ljy970118@163.com, Zhang, Wei3,4 (AUTHOR) zhang66wei@163.com, Qi, Liqiang3 (AUTHOR) heavenxiaohuya@163.com, Wang, Siru1 (AUTHOR)
Publikováno v:
Agronomy. Aug2024, Vol. 14 Issue 8, p1749. 21p.
In this paper, we consider the possibilities of generating baryon number asymmetry in thermal equilibrium within the frameworks of teleparallel and symmetric teleparallel gravities. Through the derivative couplings of the torsion scalar or the non-me
Externí odkaz:
http://arxiv.org/abs/2110.14310
Autor:
Li, Mingzhe, Zhao, Dehao
Publikováno v:
Phys.Lett.B 827 (2022) 136968
The parity violating gravity models based on the symmetric teleparallel gravity have been considered in the literature, but their applications in cosmology and especially the modifications to cosmological perturbations have not been fully explored. I
Externí odkaz:
http://arxiv.org/abs/2108.01337
Publikováno v:
In Measurement April 2024 229
Autor:
Zhao, Dehao
Publikováno v:
Eur. Phys. J. C 82, 303 (2022)
In Symmetric Teleparallel General Relativity, gravity is attributed to the non-metricity. The so-called "coincident gauge" is usually taken in this theory so that the affine connection vanishes and the metric is the only fundamental variable. This ga
Externí odkaz:
http://arxiv.org/abs/2104.02483
In this paper we consider a parity violating gravity model without higher derivatives, thus ghost free. This model is constructed from the tetrad and its derivatives and coupled to a dynamical scalar field, like axion. It can be reduced from the Nieh
Externí odkaz:
http://arxiv.org/abs/2007.08038