Gravitational Waves and Extra Dimensions: A Short Review*

Yu, Hao; Lin, Zi-Chao; Liu, Yu-Xiao

doi:10.1088/0253-6102/71/8/991

Cited by 35 publications

(28 citation statements)

References 331 publications

(387 reference statements)

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“…This effect, however, was not found in the GW170817 neutron stars coalescence event [11]. Meanwhile, further investigations are active, see recent papers and reference therein [12][13][14]. Relation of the extra dimensions to the black hole shadows is also worth to be mentioned [15].…”

Section: Introductionmentioning

confidence: 96%

Synchrotron radiation in odd dimensions

Gal'Tsov

Khlopunov

2020

Phys. Rev. D

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In odd space-time dimensions, the retarded solution of the massless wave equation has support not only on the light cone, but also inside it. At the same time, a free massless field should propagate at the speed of light. The apparent contradiction of these two features is resolved by the fact that the emitted part of the field in the wave zone depends on the history of motion up to the retarded moment of proper time. It is shown that in the case of circular motion with ultrarelativistic velocity, the main contribution to the radiation amplitude is made by a small interval of proper time preceding the retarded time, and thus the tail term is effectively localized. We obtain a tentative formula for scalar synchrotron radiation in D dimensions: P = g 2 (ω 0 γ 2 / √ 3) D−2 , which is explicitly verified in D = 3, 4, 5.

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Section: Introductionmentioning

confidence: 96%

Synchrotron radiation in odd dimensions

Gal'Tsov

Khlopunov

2020

Phys. Rev. D

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“…: V,-vol event provides a strong constraint on the propagation speed of GWs by analyzing the observed time delay between GW and GRB signals. This in turn imposes a strong constraint on modified gravity theories such as [23][24][25][26][27][28] (see [29] for a review). Concerning HL gravity, it was shown in [30,31] that this puts a stringent constraint on the parameter β (see Eq.…”

Section: Introductionmentioning

confidence: 99%

Constraints on Hořava–Lifshitz gravity from GRB 170817A

et al. 2020

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In this work we focus on a toy model: ($$3+1$$ 3 + 1 )-dimensional Hořava–Lifshitz gravity coupling with an anisotropic electromagnetic (EM) field which is generated through a Kaluza-Klein reduction of a ($$4+1$$ 4 + 1 )-dimensional Hořava–Lifshitz gravity. This model exhibits a remarkable feature that it has the same velocity for both gravitational and electromagnetic waves. This feature makes it possible to restrict the parameters of the theory from GRB 170817A. In this work we use this feature to discuss possible constraints on the parameter $$\beta $$ β in the theory, by analyzing the possible Lorentz invariance violation effect of the GRB 170817A. This is achieved by analyzing potential time delay of gamma-ray photons in this event. It turns out that it places a stringent constraint on this parameter. In the most ideal case, it gives $$|1-\sqrt{\beta }|<(10^{-19}-10^{-18})$$ | 1 - β | < ( 10 - 19 - 10 - 18 ) .

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“…The condition of the strong FOPT in the new physics beyond the SM can be more easily realized when the Higgs sector includes more scalars [52]. For example, there are works on a singlet extension of the SM [53][54][55][56] or more than one singlet extension [57][58][59][60], two-Higgs-doublet models (2HDMs) [61][62][63][64] or other doublet extensions [65,66], models with triplet extension [67], SUSY models [68][69][70][71], composite models [72][73][74] and walking technicolor models [75][76][77], twin Higgs models [78], Pati-Salam model [79,80], the left-right SU(4) model [81,82] motived by the B physics anomalies, Gorgi-Machacek model [83], axion or axion-like particle models [84][85][86], extra dimensional models [87], models with charged singlet [88], seesaw models [89], models with hidden sectors [90][91][92] and dark matter (DM) models [93][94]…”

Section: Introductionmentioning

confidence: 99%

Prospects of gravitational waves in the minimal left-right symmetric model

Yan

Zhao

2021

J. High Energ. Phys.

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The left-right symmetric model (LRSM) is a well-motivated framework to restore parity and implement seesaw mechanisms for the tiny neutrino masses at or above the TeV-scale, and has a very rich phenomenology at both the high-energy and high-precision frontiers. In this paper we examine the phase transition and resultant gravitational waves (GWs) in the minimal version of LRSM. Taking into account all the theoretical and experimental constraints on LRSM, we identify the parameter regions with strong first-order phase transition and detectable GWs in the future experiments. It turns out in a sizeable region of the parameter space, GWs can be generated in the phase transition with the strength of 10−17 to 10−12 at the frequency of 0.1 to 10 Hz, which can be detected by BBO and DECIGO. Furthermore, GWs in the LRSM favor a relatively light SU(2)R-breaking scalar $$ {H}_3^0 $$ H 3 0 , which is largely complementary to the direct searches of a long-lived neutral scalar at the high-energy colliders. It is found that the other heavy scalars and the right-handed neutrinos in the LRSM also play an important part for GW signal production in the phase transition.

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Gravitational Waves and Extra Dimensions: A Short Review*

Cited by 35 publications

References 331 publications

Synchrotron radiation in odd dimensions

Synchrotron radiation in odd dimensions

Constraints on Hořava–Lifshitz gravity from GRB 170817A

Prospects of gravitational waves in the minimal left-right symmetric model

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