New gravitational memories

By Sabrina Pasterski, Andrew Strominger, A. Zhiboedov. 2015

284 citations recorded by the source corpus.

A bstractThe conventional gravitational memory effect is a relative displacement in the position of two detectors induced by radiative energy flux. We find a new type of gravitational ‘spin memory’ in which beams on clockwise and counterclockwise orbits acquire a relative delay induced by radiative angular momentum flux. It has recently been shown that the displacement memory formula is a Fourier transform in time of Weinberg’s soft graviton theorem. Here we see that the spin memory formula is a Fourier transform in time of the recently-discovered subleading soft graviton theorem.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/3df076ee7996795b450cf18dbe97cb8f5dfc5aaf

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Citations in the corpus

Lectures on the Infrared Structure of Gravity and Gauge Theory (2017, background): “A recent proposal to test superrotation charge conservation via the gravitational spin memory effect [69] was made by Nichols [70].”
Lectures on celestial amplitudes (2021, background): “The fact that there were also corresponding physical observables added the third vertex to what became known as the IR triangle [37, 39, 73].”
Conserved charges of the extended Bondi-Metzner-Sachs algebra (2015, methodology): “Following [15] we integrate the magnetic piece of Eq.”
Superboost transitions, refraction memory and super-Lorentz charge algebra (2018, background): “n relating super-Lorentz charges to the subleading soft graviton theorem by Ward identities [18,22,28], and relating the subleading soft graviton theorem to the spin eect by a Fourier transformation [16]. In this paper, we claried how the superboost transitions lead to the refraction or velocity kic”
Asymptotic symmetries and electromagnetic memory (2015, background): “The utility of such an extension was demonstrated by Strominger and collaborators over the past year when they derived the corresponding tree-level subleading soft factor [5], showed its connection to superrotation generators [6], and completed the above triangle by proposing the spin memory effect ”
Celestial Holography (2021, background): “effect [33], as well as a 4D scattering mode that behaves like the stress tensor of a 2D conformal field theory [93].”
Soft Hair on Black Holes. (2016, methodology): “Although originating in a different context these observations do provide, as discussed in [9, 10], a priori reasons to doubt the ‘unquestionable’ assumptions underlying the information paradox: (i) The vacuum in quantum gravity is not unique.”
Superrotation charge and supertranslation hair on black holes (2016, background): “Superrotation charge conservation may in principle be tested via the gravitational spin memory effect [21].”
Flat holography: aspects of the dual field theory (2016, background): “There also has been the discovery of a new gravitational memory effect, called the spin memory which are related to super-rotations [13].”