Results 11 to 20 of about 47,684,316 (289)
Gravitational S-matrix from CFT dispersion relations [PDF]
Journal of High Energy Physics, 2018 We analyse the double-discontinuities of the four-point correlator of the stress-tensor multiplet in N=4 SYM at large t’ Hooft coupling and at order 1/N 4, as a way to access one-loop effects in the dual supergravity theory.
Luis F. Alday, Simon Caron-Huot
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S-matrix singularities and CFT correlation functions [PDF]
Journal of High Energy Physics, 2017 In this note, we explore the correspondence between four-dimensional flat space S-matrix and two-dimensional CFT proposed by Pasterski et al. We demonstrate that the factorisation singularities of an n-point cubic diagram reproduces the AdS Witten ...
Carlos Cardona, Yu-tin Huang
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Adding flavour to the S-matrix bootstrap [PDF]
Journal of High Energy Physics, 2018 We explore the S-matrices of gapped, unitary, Lorentz invariant quantum field theories with a global O(N) symmetry in 1+1 dimensions. We extremize various cubic and quartic couplings in the two-to-two scattering amplitudes of vector particles. Saturating
Lucía Córdova, Pedro Vieira
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Relative entropy in scattering and the S-matrix bootstrap [PDF]
SciPost Physics, 2020 We consider entanglement measures in 2-2 scattering in quantum field theories, focusing on relative entropy which distinguishes two different density matrices.
Anjishnu Bose, Parthiv Haldar, Aninda Sinha, Pritish Sinha, Shaswat S Tiwari
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The L ∞-algebra of the S-matrix
Journal of High Energy Physics, 2019 We point out that the one-particle-irreducible vacuum correlation functions of a QFT are the structure constants of an L ∞-algebra, whose Jacobi identities hold whenever there are no local gauge anomalies.
Alex S. Arvanitakis
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On the S-matrix of Liouville theory [PDF]
Journal of High Energy Physics, 2021 The S-matrix for each chiral sector of Liouville theory on a cylinder is computed from the loop expansion of correlation functions of a one-dimensional field theory on a circle with a non-local kinetic energy and an exponential potential.
George Jorjadze, Stefan Theisen
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The c = 1 string theory S-matrix revisited [PDF]
Journal of High Energy Physics, 2019 We revisit the perturbative S-matrix of c = 1 string theory from the worldsheet perspective. We clarify the origin of the leg pole factors, the non-analyticity of the string amplitudes, and the validity as well as limitations of earlier computations ...
Bruno Balthazar +2 more
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The S-matrix bootstrap II: two dimensional amplitudes [PDF]
Journal of High Energy Physics, 2017 We consider constraints on the S-matrix of any gapped, Lorentz invariant quantum field theory in 1 + 1 dimensions due to crossing symmetry and unitarity.
Miguel F. Paulos +4 more
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Physics of the analytic S-matrix [PDF]
Physics reports, 2023 You might've heard about various mathematical properties of scattering amplitudes such as analyticity, sheets, branch cuts, discontinuities, etc. What does it all mean?
Sebastian Mizera
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On an exponential representation of the gravitational S-matrix [PDF]
Journal of High Energy Physics, 2021 An exponential representation of the S-matrix provides a natural framework for understanding the semi-classical limit of scattering amplitudes. While sharing some similarities with the eikonal formalism it differs from it in details.
P. Damgaard, L. Planté, P. Vanhove
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