Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Riccardo Gonzo"'
Autor:
Andrea Cristofoli, Riccardo Gonzo, Nathan Moynihan, Donal O’Connell, Alasdair Ross, Matteo Sergola, Chris D. White
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-72 (2024)
Abstract We study the variance in the measurement of observables during scattering events, as computed using amplitudes. The classical regime, characterised by negligible uncertainty, emerges as a consequence of an infinite set of relationships among
Externí odkaz:
https://doaj.org/article/97ed0fd92bbe4874a43d0529407c40af
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-54 (2024)
Abstract With the aim of computing bound waveforms from scattering amplitudes, we explore gravitational two-body dynamics using the Schwinger-Dyson equations and Bethe-Salpeter recursion. We show that the tree-level scattering waveform admits a natur
Externí odkaz:
https://doaj.org/article/c0459db4237b4bf4a887ecb6836e8a55
Autor:
Riccardo Gonzo, Anton Ilderton
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-42 (2023)
Abstract We study the space and properties of global and local observables for radiation emitted in the scattering of a massive scalar field in gauge and gravitational plane-wave backgrounds, in both the quantum and classical theory. We first compute
Externí odkaz:
https://doaj.org/article/bd6036a82655477eab2f78b7747526d8
Autor:
Tim Adamo, Riccardo Gonzo
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-51 (2023)
Abstract The Bethe-Salpeter equation is a non-perturbative, relativistic and covariant description of two-body bound states. We derive the classical Bethe-Salpeter equation for two massive point particles (with or without spin) in a bound gravitation
Externí odkaz:
https://doaj.org/article/460040614f7c4950b4de3754f4f79431
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 10, Pp 1-50 (2022)
Abstract We explore the celestial holography proposal for non-trivial asymptotically flat backgrounds including the Coulomb field of a static and spinning point charge, their gravitational counterparts described by the Schwarzschild and Kerr metrics,
Externí odkaz:
https://doaj.org/article/d9741604651c4fc98d067cf4ced72a32
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-48 (2022)
Abstract In the two-body scattering problem in general relativity, we study the final graviton particle distribution using a perturbative approach. We compute the mean, the variance and the factorial moments of the distribution from the expectation v
Externí odkaz:
https://doaj.org/article/edb8856aaf6246ddb83a86b55e5c99ef
Autor:
Riccardo Gonzo, Andrzej Pokraka
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-48 (2021)
Abstract Light-ray operators naturally arise from integrating Einstein equations at null infinity along the light-cone time. We associate light-ray operators to physical detectors on the celestial sphere and we provide explicit expressions in perturb
Externí odkaz:
https://doaj.org/article/0fc1ad86d42a4fc393c1d2429eb6e1de
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 4, Pp 1-28 (2020)
Abstract In this paper we study the BMS symmetry of the celestial OPE of two positive helicity gravitons in Einstein theory in four dimensions. The celestial OPE is obtained by Mellin transforming the scattering amplitude in the (holomorphic) colline
Externí odkaz:
https://doaj.org/article/b90272129b2c46458ed14645481ac7ab
Autor:
Tim Adamo, Riccardo Gonzo
Publikováno v:
Journal of High Energy Physics
The Bethe-Salpeter equation is a non-perturbative, relativistic and covariant description of two-body bound states. We derive the classical Bethe-Salpeter equation for two massive point particles (with or without spin) in a bound gravitational system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::288320e835a0ea7ca28cd4c574144b93
Publikováno v:
Physical Review D, to appear
Phys.Rev.D
Phys.Rev.D, 2022, 106 (5), pp.056007. ⟨10.1103/PhysRevD.106.056007⟩
Cristofoli, A, Gonzo, R, Kosower, D A & O'Connell, D 2022, ' Waveforms from amplitudes ', Physical Review D, vol. 106, no. 5, 056007 . https://doi.org/10.1103/PhysRevD.106.056007
Physical Review D
Physical Review
Cristofoli, A, Gonzo, R, Kosower, D A & O'Connell, D 2022, ' Waveforms from Amplitudes ', Physical Review D, particles, fields, gravitation, and cosmology, vol. 106, no. 5, 056007, pp. 1-39 . https://doi.org/10.1103/PhysRevD.106.056007
Phys.Rev.D
Phys.Rev.D, 2022, 106 (5), pp.056007. ⟨10.1103/PhysRevD.106.056007⟩
Cristofoli, A, Gonzo, R, Kosower, D A & O'Connell, D 2022, ' Waveforms from amplitudes ', Physical Review D, vol. 106, no. 5, 056007 . https://doi.org/10.1103/PhysRevD.106.056007
Physical Review D
Physical Review
Cristofoli, A, Gonzo, R, Kosower, D A & O'Connell, D 2022, ' Waveforms from Amplitudes ', Physical Review D, particles, fields, gravitation, and cosmology, vol. 106, no. 5, 056007, pp. 1-39 . https://doi.org/10.1103/PhysRevD.106.056007
We show how to compute classical wave observables using quantum scattering amplitudes. We discuss observables both with incoming and with outgoing waves. The required classical limits are naturally described by coherent states of massless bosons. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::456a25c9e5baf7c3486301845d0ac3e1