Zobrazeno 1 - 10
of 4 890
pro vyhledávání: '"1/N Expansion"'
Autor:
Stephen G. Naculich, Athis Osathapan
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-43 (2024)
Abstract In the decomposition of gauge-theory amplitudes into kinematic and color factors, the color factors (at a given loop order L) span a proper subspace of the extended trace space (which consists of single and multiple traces of generators of t
Externí odkaz:
https://doaj.org/article/2ec16ea41110455faf82e239aaca4ae6
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-40 (2024)
Abstract We consider type IIB string theory with N D3 branes and various configurations of sevenbranes, such that the string coupling g s is fixed to a constant finite value. These are the simplest realizations of F-theory, and are holographically du
Externí odkaz:
https://doaj.org/article/1f0fb6fae72d4946831417888d49d751
Autor:
Alexey Milekhin, Jiuci Xu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-22 (2024)
Abstract We revisit Brownian Sachdev-Ye-Kitaev model and argue that it has emergent energy conservation overlooked in the literature before. We solve this model in the double-scaled regime and demonstrate hyperfast scrambling, exponential decay of co
Externí odkaz:
https://doaj.org/article/9809336284434305ae5f27f403b9ca6d
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-46 (2024)
Abstract We study the superconformal index of 3d N $$ \mathcal{N} $$ = 2 superconformal field theories on S 1 × ω S 2 in the Cardy-like limit where the radius of the S 1 is much smaller than that of the S 2. We show that the first two leading terms
Externí odkaz:
https://doaj.org/article/9416ee14083a4162ad168a4e5a3fae0b
Autor:
Hiromasa Takaura
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-26 (2024)
Abstract We present a method to extract the low energy behavior of physical observables from their high energy expansions, systematically calculable via the operator product expansion (OPE), in asymptotically free and mass-gapped theories. By applyin
Externí odkaz:
https://doaj.org/article/561010fc22244a95b3145c6fcbe2a428
Autor:
Nicholas Geiser
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-40 (2024)
Abstract We study the N-point Coon amplitude discovered first by Baker and Coon in the 1970s and then again independently by Romans in the 1980s. This Baker-Coon-Romans (BCR) amplitude retains several properties of tree-level string amplitudes, namel
Externí odkaz:
https://doaj.org/article/a8ea54a00aba4e918a68773f929517e4
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-21 (2024)
Abstract Large N quasi-fermionic Chern-Simons-matter theories have an approximate higher-spin symmetry that strongly constrains their correlation functions. In particular, the 3-point functions for generic spins are combinations of 3 structures (with
Externí odkaz:
https://doaj.org/article/fcc66179c5f048c1b8d8b2f0756577db
Autor:
Yizhuang Liu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-43 (2024)
Abstract In this work, we investigate a coordinate space structure function E $$ \mathcal{E} $$ (z 2 m 2, λ) in the 2D U(N) Gross-Neveu model to the next-to-leading order in the large-N expansion. We analytically perform the twist expansion in the B
Externí odkaz:
https://doaj.org/article/2f133cc7bf0142609489a47982f48551
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-32 (2024)
Abstract After averaging over fermion couplings, SYK has a collective field description that sometimes has “wormhole” solutions. We study the fate of these wormholes when the couplings are fixed. Working mainly in a simple model, we find that the
Externí odkaz:
https://doaj.org/article/4520559cec1a4e609a322aaad780ed3b
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-34 (2024)
Abstract We continue the investigation of large N QCD from a modern bootstrap perspective, focusing on the mesons. We make the natural spectral assumption that the 2 → 2 pion amplitude must contain, above the spin-one rho meson, a massive resonance
Externí odkaz:
https://doaj.org/article/7b1f8fe1facd47ffb063ace92df14811