Calculation of the staggered spin correlation in the framework of the Dyson-Schwinger approach

Abstract

Based on the linear response of the fermion propagator with respect to an external field, we first derive a model-independent expression for the staggered spin susceptibility in which the influence of the full pseudoscalar vertex function is included. This expression for the staggered spin susceptibility is quite different from that given in the previous literature. The numerical values of the staggered spin susceptibility are calculated within the framework of the Dyson-Schwinger approach. Our numerical result shows that the nonperturbative dressing effects on the fermion propagator is very important when one studies the staggered spin susceptibility which corresponding to antiferromagnetic correlation in both Nambu phase and Winger phase.

12 pages, 4 figures

References in corpus (5)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• Unconventional Integer Quantum Hall effect in graphene
• Is graphene in vacuum an insulator?
• Regarding confinement and dynamical chiral symmetry breaking in QED3
• Crossover from a continuum study of chiral susceptibility

Cited by in corpus (5)

• Progress in vacuum susceptibilities and their applications to the chiral phase transition of QCD
• Discussions on the crossover property within the Nambu--Jona-Lasinio model
• Continuum study of various susceptibilities within thermal QED${}_3$
• Robustness of the semimetal state of Na3Bi and Cd3As2 against Coulomb interaction
• Nonperturbative solutions of Dyson-Schwinger equations in QED${}_3$