Quadratic-in-spin interactions at fifth post-Newtonian order probe new physics

Kim, Jung-Wook; Levi, Michèle; Yin, Zhewei

doi:10.48550/arxiv.2112.01509

Cited by 7 publications

(9 citation statements)

References 49 publications

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“…[305] for a comprehensive review of spin effects in the post-Newtonian expansion using worldline EFTs and Refs. [306][307][308][309][310][311][312][313][314][315] for recent results using worldine approaches). Some results for spin corrections to the two-body effective potential for a binary system were carried out in Refs.…”

Section: Higher Spin Techniques For Black Hole Scatteringmentioning

confidence: 99%

Snowmass White Paper: Higher Spin Gravity and Higher Spin symmetry

Bekaert¹,

Boulanger²,

Campoleoni³

et al. 2022

Preprint

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Higher Spin Gravity refers to extensions of gravity including at least one field of spin greater than two. These extensions are expected to provide manageable models of quantum gravity thanks to the infinite-dimensional (higher spin) gauge symmetry constraining them. One of the key aspects of Higher Spin Gravity/Symmetry is the range and diversity of topics it embraces: (a) higher spin fields play a role in quantum gravity, AdS/CFT, string theory and are expected to have important consequences in cosmology and black hole physics; (b) higher spin symmetry finds applications in Conformal Field Theories, condensed matter systems and dualities therein; (c) these models often rely on tools developed in the study of the mathematical foundations of QFT or in pure mathematics: from deformation quantization and non-commutative geometry to conformal geometry, graded geometry (including BV-BRST quantization), and geometry of PDEs. Recent exciting applications also involve (d) modelling the coalescence of black hole binaries as scattering of massive higher spin particles.

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Section: Higher Spin Techniques For Black Hole Scatteringmentioning

confidence: 99%

Snowmass White Paper: Higher Spin Gravity and Higher Spin symmetry

Bekaert¹,

Boulanger²,

Campoleoni³

et al. 2022

Preprint

View full text Add to dashboard Cite

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“…Furthermore, observables computed for scattering events in the PM expansion can be compared with those computed in the more traditional post-Newtonian (PN) [65] perturbation theory (for spin effects in the PN scheme see e.g. [66][67][68][69][70][71][72][73][74][75]), which is more suitable for describing bound orbits, using the so-called Bound-to-Boundary (B2B) [16][17][18] correspondence.…”

Section: Introductionmentioning

confidence: 99%

Radiation reaction for spinning black-hole scattering

Alessio,

Di Vecchia

2022

Preprint

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Starting from the leading soft term of the 5-point amplitude, involving a graviton and two Kerr black holes, that factorises into the product of the elastic amplitude without the graviton and the leading soft factor, we compute the infrared divergent contribution to the imaginary part of the two-loop eikonal. Then, using analyticity and crossing symmetry, we determine the radiative contribution to the real part of the two-loop eikonal and from it the radiative part of the deflection angle for spins aligned to the orbital angular momentum, the loss of angular momentum and the zero frequency limit of the energy spectrum for any spin and for any spin orientation. For spin one we find perfect agreement with recent results obtained with the supersymmetric worldline formalism.

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“…in Refs. [21][22][23], pushing the state-of-the-art for spinning particles to the N 3 LO spin-orbit [24,25], N 3 LO quadratic-in-spin [26][27][28], NLO cubic-in-spin [29], and NLO quartic-in-spin [30]. Spinning binary dynamics may also be treated in a post-Minkowskian expansion, where one works to all orders in speeds but perturbatively in the strength of the fields, regulated by powers of the gravitational constant G, as in the post-Minkowskian worldline approaches in Refs.…”

Section: Introductionmentioning

confidence: 99%

Scattering of gravitational waves off spinning compact objects with an effective worldline theory

Saketh¹,

Vines²

2022

Preprint

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We study the process, within classical general relativity, in which an incident gravitational plane wave, of weak amplitude and long wavelength, scatters off a massive spinning compact object, such as a black hole or neutron star. The amplitude of the asymptotic scattered wave, considered here at linear order in Newton's constant G while at higher orders in the object's multipole expansion, is a valuable characterization of the response of the object to external gravitational fields. This amplitude coincides with a classical ( → 0) limit of a quantum 4-point (object and graviton in, object and graviton out) gravitational Compton amplitude, at the tree (linear-in-G) level. Such treelevel Compton amplitudes are key building blocks in generalized-unitary-based approaches to the post-Minkowskian dynamics of binaries of spinning compact objects. In this paper, we compute the classical amplitude using an effective worldline theory to describe the compact object, determined by an action functional for translational and rotational degrees of freedom, including couplings of spin-induced higher multipole moments to spacetime curvature. We work here up to the levels of quadratic-in-spin quadrupole and cubic-in-spin octupole couplings, respectively involving Wilson coefficients C2 and C3. For the special case C2 = C3 = 1 corresponding to a black hole, we find agreement through cubic-in-spin order between our classical amplitude and previous conjectures arising from considerations of quantum scattering amplitudes. We also present new results for general C2 and C3, anticipating instructive comparisons with results from effective quantum theories.

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Quadratic-in-spin interactions at fifth post-Newtonian order probe new physics

Cited by 7 publications

References 49 publications

Snowmass White Paper: Higher Spin Gravity and Higher Spin symmetry

Snowmass White Paper: Higher Spin Gravity and Higher Spin symmetry

Radiation reaction for spinning black-hole scattering

Scattering of gravitational waves off spinning compact objects with an effective worldline theory

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