Results 21 to 30 of about 34,458 (223)

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
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Conformal Symmetry as a Template: Commensurate Scale Relations and Physics Renormalization Schemes

, 1999
Commensurate scale relations are perturbative QCD predictions which relate observable to observable at fixed relative scale, such as the "generalized Crewther relation", which connects the Bjorken and Gross-Llewellyn Smith deep inelastic scattering sum rules to measurements of the e+ e- annihilation cross section.
Stanley J. Brodsky, Johan Rathsman
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Scale Invariant Parity Doublet Model: Interplay between the Vector Mesons and the Dilatons /Parity Doubling in Dense Baryonic Matter as an Emergent Symmetry and Pseudo-Conformal Model

The star matter composed of nucleons deep inside the compact star like a neutron star is believed to be very dense and various new types of concepts and physical phenomena due to the nontrivial strong correlations are naturally expected. Peudo-conformality in dense star matter has been discussed recently assuming the hidden underlying scale symmetry ...
Hyun Kyu Lee
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Finite-size scaling and conformal symmetry around the (2 + 1)-dimensional SU(2) deconfinement phase transition

Nuclear Physics B, 1991
Abstract Conformal invariance at a second-order phase transition yields an exact finite-size scaling theory on a two-dimensional cylindrical geometry. We combine this two-dimensional conformal field theory with a numerical investigation of the deconfinement phase transition of (2 + 1)-dimensional SU(2) lattice gauge theory.
Jesper H. Christensen, P.H. Damgaard
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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 Symmetry: Finding New Physics in Scale Invariance

, 2016
Modern physics is the study of symmetry. Everything from electromagnetism to the famed Higgs mechanism stems from fundamental symmetries. These have fancy mathematical names and even fancier math behind them, but the basic idea is the same. These are mathematical generalizations of normal transformations such as rotating.
Benjamin C. Lovelady
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Analytic bootstrap for the localized magnetic field

Journal of High Energy Physics, 2023
We study the two-point function of local operators in the critical O(N) model in the presence of a magnetic field localized on a line. We use a recently developed conformal dispersion relation to compute the correlator at first order in the ϵ-expansion ...
Lorenzo Bianchi, Davide Bonomi, Elia de Sabbata   +2 more
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Analytic bootstrap of mixed correlators in the O(n) CFT

Journal of High Energy Physics, 2022
We use large spin perturbation theory and the Lorentzian inversion formula to compute order-ϵ corrections to mixed correlators in the O(n) Wilson-Fisher CFT in 4 − ϵ dimensions.
Francesco Bertucci, Johan Henriksson, Brian McPeak   +2 more
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Yukawa interactions at large charge

Journal of High Energy Physics, 2022
We extend the fixed-charge semiclassical method by computing anomalous dimensions of fixed-charge scalar operators in models with Yukawa interactions. In particular, we discuss the Nambu-Jona-Lasinio-Yukawa theory as well as an asymptotically safe gauge ...
Oleg Antipin, Jahmall Bersini, Pantelis Panopoulos   +2 more
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Narain CFTs and quantum codes at higher genus

Journal of High Energy Physics, 2023
Code CFTs are 2d conformal field theories defined by error-correcting codes. Recently, Dymarsky and Shapere generalized the construction of code CFTs to include quantum error-correcting codes. In this paper, we explore this connection at higher genus. We
Johan Henriksson, Ashish Kakkar, Brian McPeak   +2 more
doaj   +1 more source