Results 21 to 30 of about 37,131 (309)

Scale-dependence of the $B$-meson LCDA beyond leading order from conformal symmetry [PDF]

Proceedings of 14th International Symposium on Radiative Corrections — PoS(RADCOR2019), 2019
We argue that the evolution kernel for the scale-dependence of the $B$-meson light-cone distribution amplitude (LCDA) can be written, to all orders in perturbation theory, in terms of the generator of special conformal transformations in a modified theory: QCD at critical coupling in non-integer $d\neq 4$ dimensions.
V. M. Braun, Yao Ji, A. N. Manashov
  +7 more sources

Parisi-Sourlas Supertranslation and Scale without Conformal symmetry [PDF]

6+2 pages, v2: appendix added, reference ...
Yu Nakayama
openalex   +3 more sources

Observation of Conformal Symmetry Breaking and Scale Invariance in Expanding Fermi Gases [PDF]

Physical Review Letters, 2014
11 pages, 8 ...
Ethan Elliott, James Joseph, J. E. Thomas   +2 more
openalex   +6 more sources

Local conformal symmetry in non-Riemannian geometry and the origin of physical scales [PDF]

The European Physical Journal C, 2017
11 pages; v2: matches published version in EPJC; new title, includes new sections on the coupling of matter fields to the extended gravitational ...
Marco de Cesare, J. W. Moffat, Mairi Sakellariadou   +2 more
openalex   +11 more sources

Conformal symmetry of a black hole as a scaling limit: a black hole in an asymptotically conical box [PDF]

Journal of High Energy Physics, 2012
We show that the previously obtained subtracted geometry of four-dimensional asymptotically flat multi-charged rotating black holes, whose massless wave equation exhibit $SL(2,\R) \times SL(2,\R) \times SO(3)$ symmetry may be obtained by a suitable scaling limit of certain asymptotically flat multi-charged rotating black holes, which is reminiscent of ...
Mirjam Cvetič, G. W. Gibbons
openalex   +5 more sources

Unveiling chiral phases: Finite-size scaling as a probe of quantum phase transition in symmetry-enriched $c=1$ conformal field theories

, 2023
Chenan Wei, V. V. Mkhitaryan, Tigran Sedrakyan   +2 more
openalex   +3 more sources

Conformal little Higgs models [PDF]

Physical Review D, 2023
Little Higgs models address the hierarchy problem by identifying the SM Higgs doublet as pseudo-Nambu--Goldstone bosons (pNGB) arising from global symmetries with collective breakings.
Aqeel Ahmed, Manfred Lindner, Philipp Saake   +2 more
semanticscholar   +1 more source

From CFTs to theories with Bondi-Metzner-Sachs symmetries: Complexity and out-of-time-ordered correlators [PDF]

Physical Review D, 2022
We probe the contraction from 2 d relativistic CFTs to theories with Bondi-Metzner-Sachs (BMS) symmetries, or equivalently Conformal Carroll symmetries, using diagnostics of quantum chaos. Starting from an Ultrarelativistic limit on a relativistic scalar
A. Banerjee, Arpan Bhattacharyya, Priya Drashni, Srinidhi Pawar   +3 more
semanticscholar   +1 more source

Unveiling chiral states in the XXZ chain: finite-size scaling probing symmetry-enriched c = 1 conformal field theories [PDF]

Journal of High Energy Physics
Abstract We study the low-energy properties of the one-dimensional spin-1/2 XXZ chain with time-reversal symmetry-breaking pseudo-scalar chiral interaction and propose a phase diagram for the model. In the integrable case of the isotropic Heisenberg model with the chiral interaction, we employ the thermodynamic Bethe ansatz to find
Chenan Wei, V. V. Mkhitaryan, Tigran Sedrakyan   +2 more
openalex   +5 more sources

Parisi-Sourlas Supertranslation and Scale Invariance without Conformal Symmetry

Physical Review Letters
Inspired by the possibility of emergent supersymmetry in critical random systems, we study a field theory model with a quartic potential of one superfield, possessing the Parisi-Sourlas supertranslation symmetry. Within perturbative ε expansion, we find nine nontrivial scale-invariant renormalization group fixed points, but only one of them is ...
Yu Nakayama
openalex   +3 more sources