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Gabriele Veneziano / Veneziano, Gabriele (speaker)
2024 - 186. Conferences, Workshops & Schools; Alvaro@80 External links: Talk details; Event details In : Alvaro@80

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Baryon-number — flavor separation in the topological expansion of QCD / Frenklakh, David (SUNY, Stony Brook) ; Kharzeev, Dmitri (SUNY, Stony Brook ; Brookhaven) ; Rossi, Giancarlo (INFN, Rome ; Enrico Fermi Ctr., Rome) ; Veneziano, Gabriele (CERN ; College de France)
Gauge invariance of QCD dictates the presence of string junctions in the wave functions of baryons. In high-energy inclusive processes, these baryon junctions have been predicted to induce the separation of the flows of baryon number and flavor. [...]
arXiv:2405.04569; CERN-TH-2024-055.- 2024-07-30 - 27 p. - Published in : JHEP 2407 (2024) 262 Fulltext: 2405.04569 - PDF; document - PDF;

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Gravitational Amplitudes: from Gedanken to Real Experiments / Veneziano, Gabriele (speaker)
2023 - 3219. Conferences, Workshops & Schools; Amplitudes 2023 Conference External links: Talk details; Event details In : Amplitudes 2023 Conference

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The gravitational eikonal: from particle, string and brane collisions to black-hole encounters / Di Vecchia, Paolo (Bohr Inst. ; Nordita ; Royal Inst. Tech., Stockholm) ; Heissenberg, Carlo (Nordita ; Royal Inst. Tech., Stockholm ; Uppsala U.) ; Russo, Rodolfo (Queen Mary, U. of London) ; Veneziano, Gabriele (CERN ; College de France)
Motivated by conceptual problems in quantum theories of gravity, the gravitational eikonal approach, inspired by its electromagnetic predecessor, has been successfully applied to the transplanckian energy collisions of elementary particles and strings since the late eighties, and to string-brane collisions in the past decade. After the direct detection of gravitational waves from black-hole mergers, most of the attention has shifted towards adapting these methods to the physics of black-hole encounters. [...]
arXiv:2306.16488; CERN-TH-2023-108; NORDITA 2023-026; QMUL-PH-23-09; UUITP-14/23.- 2024-07-01 - 215 p. - Published in : Phys. Rep. 1083 (2024) 1-169 Fulltext: 2306.16488 - PDF; Publication - PDF;

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The Role of Quantum Mechanics in Modern Cosmology / Veneziano, Gabriele (CERN ; College de France)
I will briefly review, in simple terms, the crucial role of quantum mechanics in modern inflationary cosmology. Quantum processes throughout the inflationary epoch determine the subsequent evolution of our Universe, including the formation of its large-scale structures (galaxies, clusters, voids, ...). [...]
2022 - 13 p. - Published in : 10.1007/978-3-031-05625-3_2
In : Advances in cosmology, pp.23-35

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Classical Gravitational Observables from the Eikonal Operator / Di Vecchia, Paolo (Bohr Inst. ; Nordita ; Stockholm U.) ; Heissenberg, Carlo (Nordita ; Stockholm U. ; Uppsala U.) ; Russo, Rodolfo (Queen Mary, U. of London (main)) ; Veneziano, Gabriele (CERN ; College de France)
We propose two possible eikonal operators encoding the effects of classical radiation as coherent states of gravitons and show how to compute from them different classical observables. In the first proposal, only genuinely propagating gravitons are included, while, in the second, zero-frequency modes are added in order to recover the effects of a static gravitational field. [...]
arXiv:2210.12118; CERN-TH-2022-169; NORDITA 2022-071; QMUL-PH-22-32; UUITP-42/22.- 2023-07-03 - 12 p. - Published in : Phys. Lett. B 843 (2023) 138049 Fulltext: Publication - PDF; 2210.12118 - PDF;

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Concluding remarks / Veneziano, Gabriele (speaker) (CERN & College de France)
2022 - 1599. Conferences & Workshops; Veneziano 80 External links: Talk details; Event details In : Veneziano 80

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The eikonal operator at arbitrary velocities I: the soft-radiation limit / Di Vecchia, Paolo (Bohr Inst. ; Nordita ; Stockholm U.) ; Heissenberg, Carlo (Nordita ; Stockholm U. ; Uppsala U.) ; Russo, Rodolfo (Queen Mary, U. of London) ; Veneziano, Gabriele (CERN ; College de France)
Observables related to the real part of the gravitational eikonal, such as the deflection angle and time delay, have been found so far to have a smooth post-Minkowskian (PM) expansion whose validity extends from the non-relativistic to the most extreme ultra-relativistic (UR) regime, which smoothly connects with massless particle collisions. To describe gravitational radiation, the eikonal phase has to be promoted to a unitary operator for which we motivate a proposal and start discussing properties in the soft-radiation limit. [...]
arXiv:2204.02378; CERN-TH-2022-058; NORDITA 2022-022; QMUL-PH-22-14; UUITP-20/22.- 2022-07-07 - 35 p. - Published in : JHEP 2207 (2022) 039 Fulltext: document - PDF; 2204.02378 - PDF;

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Angular momentum loss in gravitational scattering, radiation reaction, and the Bondi gauge ambiguity / Veneziano, Gabriele (CERN ; College de France) ; Vilkovisky, Gregory A. (Lebedev Inst.)
Recently, Damour computed the radiation reaction on gravitational scattering as the (linear) response to the angular momentum loss which he found to be of ${\cal O}(G^2)$ in the gravitational constant. This is a puzzle because any amplitude calculation would produce both energy and angular momentum losses starting only at ${\cal O}(G^3)$. [...]
arXiv:2201.11607; CERN-TH-2021-210.- 2022-09-02 - 13 p. - Published in : Phys. Lett. B 834 (2022) 137419 Fulltext: Publication - PDF; 2201.11607 - PDF;

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Cyclic spacetimes through singularity scattering maps. Plane-symmetric gravitational collisions / Le Floch, Bruno (ENS, Paris, IPM) ; LeFloch, Philippe G. (LJLL, Paris) ; Veneziano, Gabriele (CERN ; College de France)
We study the plane-symmetric collision of two gravitational waves and describe the global spacetime geometry generated by this collision. To this end, we formulate the characteristic initial value problem for the Einstein equations, when Goursat data describing the incoming waves are prescribed on two null hypersurfaces. [...]
arXiv:2106.09666; CERN-TH-2021-094.- 2022-10-24 - 34 p. - Published in : Class. Quantum Gravity 39 (2022) 225010 Fulltext: PDF;

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參見：相似的作者
309	VENEZIANO, Gabriele
170	Veneziano, G
103	Veneziano, G.
339	Veneziano, Giovanni

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