Phase diagram and fixed points of tensorial Gross-Neveu models in three dimensions
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep01(2019)218
Abstract: A bstractPerturbing the standard Gross-Neveu model for N3 fermions by quartic interactions with the appropriate tensorial contraction patterns, we reduce the original U(N3) symmetry to either U(N) × U(N2) or U(N) × U(N) × U(N).… read more here.
Keywords: fixed points; phase diagram; gross neveu; symmetry ... See more keywords
Gross-Neveu-Heisenberg criticality from competing nematic and antiferromagnetic orders in bilayer graphene
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.045101
Abstract: We study the phase diagram of an effective model of competing nematic and antiferromagnetic orders of interacting electrons on the Bernal-stacked honeycomb bilayer, as relevant for bilayer graphene. In the noninteracting limit, the model features… read more here.
Keywords: bilayer graphene; competing nematic; gross neveu; antiferromagnetic orders ... See more keywords
Large N critical exponents for the chiral Heisenberg Gross-Neveu universality class
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DOI: 10.1103/physrevd.97.105009
Abstract: We compute the large $N$ critical exponents $\eta$, $\eta_\phi$ and $1/\nu$ in $d$-dimensions in the chiral Heisenberg Gross-Neveu model to several orders in powers of $1/N$. For instance, the large $N$ conformal bootstrap method is… read more here.
Keywords: heisenberg gross; chiral heisenberg; large critical; gross neveu ... See more keywords
Momentum dependence of quantum critical Dirac systems
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.125019
Abstract: We analyze fermionic criticality in relativistic $2+1$ dimensional fermion systems using the functional renormalization group (FRG), concentrating on the Gross-Neveu (chiral Ising) and the Thirring model. While a variety of methods, including the FRG, appear… read more here.
Keywords: dependence quantum; quantum critical; momentum; gross neveu ... See more keywords
Inhomogeneous Phase of the Chiral Gross-Neveu Model.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.071603
Abstract: There is substantial evidence that the ground state of the 2D chiral Gross-Neveu model, in the presence of a U(1) fermion number chemical potential μ and in the large N limit, is given by a… read more here.
Keywords: inhomogeneous phase; gross neveu; neveu model; chiral gross ... See more keywords
Line of Fixed Points in Gross-Neveu Theories.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.201602
Abstract: In the limit of many fermion flavors it is demonstrated that the sextic Gross-Neveu theory in three dimensions displays a line of interacting UV fixed points, characterized by an exactly marginal sextic interaction. We determine… read more here.
Keywords: points gross; gross neveu; neveu theories; line fixed ... See more keywords
Composite operator approach to dynamical mass generation in the (2 + 1)-dimensional Gross–Neveu model
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Modern Physics A"
DOI: 10.1142/s0217751x21502316
Abstract: Using a nonperturbative approach based on the Cornwall–Jackiw–Tomboulis (CJT) effective action [Formula: see text] for composite operators, the phase structure of the simplest massless [Formula: see text]-dimensional Gross–Neveu model is investigated. We have calculated [Formula:… read more here.
Keywords: gross neveu; dimensional gross; formula see; see text ... See more keywords