Zobrazeno 1 - 10
of 135
pro vyhledávání: '"Hou, Shaoqi"'
A finitely supertranslated Schwarzschild black hole possesses nontrivial super-Lorentz charges compared with the standard one. This may impact the quasinormal modes of the black hole. Since the Einstein's equations are generally covariant, the quasin
Externí odkaz:
http://arxiv.org/abs/2410.12310
Publikováno v:
Phys Rev D 109, 084011 (2024)
General relativity predicts the existence of only two tensorial gravitational wave polarizations, while a generic metric theories of gravity can possess up to four additional polarizations, including two vector and two scalar ones. These vector/scala
Externí odkaz:
http://arxiv.org/abs/2401.03474
Publikováno v:
JCAP05(2024)073
Dynamical Chern-Simons (DCS) gravity, a typical parity-violating gravitational theory, modifies both the generation and propagation of gravitational waves from general relativity (GR). In this work, we derive the gravitational waveform radiated from
Externí odkaz:
http://arxiv.org/abs/2309.05991
Publikováno v:
Phys. Rev. D 109, 044025 (2024)
This work analyzes the asymptotic behaviors of the asymptotically flat solutions of Einstein-\ae ther theory in the linear case. The vacuum solutions for the tensor, vector, and scalar modes are first obtained, written as sums of various multipolar m
Externí odkaz:
http://arxiv.org/abs/2309.01165
Publikováno v:
Phys. Rev. D 107, 044062 (2023)
The recently proposed Skordis-Z\l{}o\'{s}nik theory is the first relativistic MOND theory that can recover the success of the standard $\Lambda$CDM model at matching observations of the cosmic microwave background. This paper aims to revisit the Newt
Externí odkaz:
http://arxiv.org/abs/2302.13304
Publikováno v:
Eur. Phys. J. C (2023) 83:127
Wormholes bridging distant places of the universe are well-known solutions of general relativity. In particular, traversable wormholes which allow interstellar traveling are also popular in science fiction. However, no hint of their existence has bee
Externí odkaz:
http://arxiv.org/abs/2201.05866
Publikováno v:
JCAP04(2022)032
In this work, conserved charges and fluxes at the future null infinity are determined in the asymptotically flat spacetime for Chern-Simons modified gravity. The flux-balance laws are used to constrain the memory effects. For tensor memories, the Pen
Externí odkaz:
http://arxiv.org/abs/2112.13049
Publikováno v:
Phys. Rev. D 105, 064022 (2022)
In this work, we consider the burst signal of the dark photon, the hypothetical vector boson of the $U(1)_B$ or $U(1)_{B-L}$ gauge group, generated by a compact binary star system. The absence of the signal in the laser interferometer puts bounds on
Externí odkaz:
http://arxiv.org/abs/2110.05084
Publikováno v:
Phys. Rev. D 105, 024025 (2022)
The gravitational memory effects of Chern-Simons modified gravity are considered in the asymptotically flat spacetime. If the Chern-Simons scalar does not directly couple with the ordinary matter fields, there are also displacement, spin and center-o
Externí odkaz:
http://arxiv.org/abs/2109.04238
Publikováno v:
MNRAS 507, 761 (2021)
Gravitational lensing has long been used to measure or constrain cosmology models. Although the lensing effect of gravitational waves has not been observed by LIGO/Virgo, it is expected that there can be a few to a few hundreds lensed events to be de
Externí odkaz:
http://arxiv.org/abs/2106.01765