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Non-compact QED_3 with N_f >=2

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arxiv hep-lat/0208030 v1 pith:U2VBSZSA submitted 2002-08-20 hep-lat cond-mat.supr-conhep-th

S.J. Hands , J.B. Kogut , C.G. Strouthos This is my paper · ORCID
classification hep-latcond-mat.supr-conhep-th
keywords chiralbreakingcondensatemassesnon-compactpseudoscalarscalarsymmetry
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Non-compact three-dimensional QED is studied by computer simulations to understand its chiral symmetry breaking features for N_f>=2, on lattice volumes up to 50^3 and bare masses as low as ma=0.0000625. We compute the chiral condensate, scalar and pseudoscalar susceptibilities, and the masses of scalar and pseudoscalar mesons. Finite volume effects and discretisation artifacts are carefully monitored. Our results reveal no decisive signal for chiral symmetry breaking for any N_f>=2. For N_f=2 the dimensionless condensate can be bounded by beta^2<psibarpsi> <= 5x10^-5. We also present an exploratory study of the fractionally-charged Polyakov line.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Thermal free energy of large Nf QED in 2+1 dimensions from weak to strong coupling

    hep-th 2019-08 conditional novelty 7.0 of 10

    For QED in 2+1 dimensions with many fermion flavors, the thermal pressure to next-to-leading order in 1/Nf is computed across all couplings, giving a curve bounded by the free-fermion and free-photon pressures.

  2. Numerical determination of monopole scaling dimension in parity-invariant three-dimensional non-compact QED

    hep-lat 2019-08 conditional novelty 7.0 of 10

    Monte Carlo measurement gives monopole scaling dimension Delta(12)=3.24(24), consistent with large-N theory, and positive finite-N corrections for N=2,4 that disagree in sign with the leading 1/N expansion.

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