Gravitational memory effects and higher derivative actions

Godazgar, Mahdi; Long, George; Seraj, Ali

doi:10.1007/jhep09(2022)150

Cited by 13 publications

(3 citation statements)

References 69 publications

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“…Soft theorems, introduced in [444,445], have been linked to asymptotic symmetries and memory effects in [120,[446][447][448][449][450][451][452][453][454][455][456][457][458][459][460][461][462][463][464][465]. Lastly, memory effects, originally proposed in [466][467][468][469][470][471], are analysed in this context in [472][473][474][475][476][477][478][479][480]. Independently from repercussions on the infrared triangle, there have been a lot of intrinsic developments in CCFT and the understanding of the 𝑆-matrix, see .…”

Section: Pos(modave2022)002mentioning

confidence: 99%

From Asymptotic Symmetries to the Corner Proposal

Ciambelli¹

2023

Proceedings of Modave Summer School in Mathematical Physics — PoS(Modave2022)

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These notes are a transcript of lectures given by the author in the XVIII Modave summer school in mathematical physics. The introduction is devoted to a detailed review of the literature on asymptotic symmetries, flat holography, and the corner proposal. It covers much more material than needed, for it is meant as a lamppost to help the reader in navigating the vast existing literature. The notes then consist of three main parts. The first is devoted to Noether's theorems and their underlying framework, the covariant phase space formalism, with special focus on gauge theories. The surface-charges algebra is shown to projectively represent the asymptotic symmetry algebra. Issues arising in the gravitational case, such as conservation, finiteness, and integrability, are addressed. In the second part, we introduce the geometric concept of corners, and show the existence of a universal asymptotic symmetry group at corners. A careful treatment of corner embeddings provides a resolution to the issue of integrability, by extending the phase space. In the last part we bridge asymptotic symmetries and corners by formulating the corner proposal. In essence, the latter focuses on the central question of extracting from classical gravity universal results that are expected to hold in the quantum realm. After reviewing the coadjoint orbit method and Atiyah Lie algebroids, we apply these concepts to the corner proposal. Exercises are solved in the notes, to elucidate the arguments exposed.

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Section: Pos(modave2022)002mentioning

confidence: 99%

From Asymptotic Symmetries to the Corner Proposal

Ciambelli¹

2023

Proceedings of Modave Summer School in Mathematical Physics — PoS(Modave2022)

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“…However, the precession for the spin memory is associated with high order terms, see [22] [27] and also [14], in which it shows that the leading order of the precession of gyroscopes is in the order of O(1/r 2 ). This spin effect could be also generated by the superrotation charges [15] or considered as a vacuum transition under the residual Lorentz symmetry [28]. In our case, there is no similar charge or symmetry, so we keep the order of O(1/r) in the following calculations.…”

Section: A Spin Vector Evolution Of Gyroscopesmentioning

confidence: 99%

Spin vector deviation and the gravitational wave memory effect between two free-falling gyroscopes in the plane wave spacetime

Wang¹,

Feng²

2023

Preprint

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In the plane wave spacetime, we find that there will be a precession angle deviation between two free-falling gyroscopes when gravitational waves passed through. This kind of angle deviation is closely related to the well-known standard velocity memory effect. Initial conditions such as the separation velocity or displacement between the two gyroscopes will affect this angle deviation. The evolutions of the angle deviation are calculated for different cases. We find that in some extreme circumstance, the angle deviation's order of magnitude produced by a rotating compact binary source could be 10 −14 rads. Therefore, this memory effect caused by the gravitational wave is likely to be detected in the future.

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“…The memory effect, which signifies the imprint of the presence of extra dimensions and the wormhole nature of the spacetime geometry, is discussed in [40]. Furthermore, it has been suggested in [41,42] that the charges associated with the internal Lorentz symmetries of general relativity, along with the inclusion of higher derivative boundary terms in the action, can capture observable GW effects.…”

Section: Introductionmentioning

confidence: 99%

Gravitational wave pulse and memory effects for hairy Kiselev black hole and its analogy with Bondi–Sachs formalism

Hadi,

Rezaei Akbarieh,

Mota

2024

Class. Quantum Grav.

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The investigation of non-vacuum cosmological backgrounds containing black holes is greatlyenhanced by the Kiselev solution. This solution plays a crucial role in understanding the properties of the background and its relationship with the features of the black hole. Consequently,the gravitational memory effects at large distances from the black hole offer a valuable meansof obtaining information about the surrounding field parameter N and parameters related tothe hair of the hairy Kiselev Black hole. This paper investigates the gravitational memoryeffects in the context of the Kiselev solution through two distinct approaches. At first, thegravitational memory effect at null infinity is explored by utilizing the Bondi-Sachs formalismby introducing a gravitational wave (GW) pulse to the solution. The resulting Bondi mass isthen analyzed to gain further insight. Therefore, the Kiselev solution is being examined todetermine the variations in Bondi mass caused by the pulse of GWs. The study of changes inBondi mass is motivated by the fact that it is dynamic and time-dependent, and it measuresmass on an asymptotically null slice or the densities of energy on celestial spheres. In thesecond approach, the investigation of displacement and velocity memory effects is undertakenin relation to the deviation of two neighboring geodesics and the deviation of their derivative influenced by surrounding field parameter N and the hair of hairy Kiselev black hole.This analysis is conducted within the context of a gravitational wave pulse present in thebackground of a hairy Kiselev black hole surrounded by a field paramete

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Gravitational memory effects and higher derivative actions

Cited by 13 publications

References 69 publications

From Asymptotic Symmetries to the Corner Proposal

From Asymptotic Symmetries to the Corner Proposal

Spin vector deviation and the gravitational wave memory effect between two free-falling gyroscopes in the plane wave spacetime

Gravitational wave pulse and memory effects for hairy Kiselev black hole and its analogy with Bondi–Sachs formalism

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