Chiral filtering in graphene with coupled valleys

Chiral Waves in Graphene Medium and Optical Simulation with Metamaterial

Chiral superfluid States in hybrid graphene heterostructures.

We study the "hybrid" heterostructure formed by one sheet of single-layer graphene (SLG) and one sheet of bilayer graphene (BLG) separated by a thin film of dielectric material. In general, it is expected that interlayer interactions can drive the system to a spontaneously broken-symmetry state characterized by interlayer phase coherence. The peculiarity of the SLG-BLG heterostructure is that t...

Chiral Symmetry Breaking in Strongly Coupled Qed?

The coupled system of renormalized Dyson-Schwinger equations for the electron self-energy and the photon propagator are supplied with the tree level vertex as Ansatz for the renormalized three point function. The system is investigated numerically. In the case of a massive electron, the theory is " weakly renormalizable " , i.e. cutoff independent for values of the cutoff below an upper limit. ...

Four-dimensional graphene and chiral fermions

Motivated by the description of the graphene electronic structure in terms of the relativistic Dirac equation, a generalization to four dimensions yields a strictly local fermion action describing two species and possessing an exact chiral symmetry. This is the minimum number of species required by the well known “no-go” theorems. PACS numbers: 11.15.Ha, 11.30.Rd, 71.10.Fd, 71.20.-b

Chiral Fermions Coupled to Lattice Gauge Fields

Lattice fermions have well-known difficulties with chiral symmetry. To evade them it is possible to couple continuum fermions to lattice gauge fields, by introducing an interpolation of the latter. Following this line of thinking, this paper presents two Euclidean formulations of the effective action that appears after functional integration over fermion fields, one for vector-like and the othe...