3 citations · 3 across the 2 of their papers we have counts for
5 papers
Dirac fermions in non-Hermitian magnetic fields: Zero modes and index theorem
Christopher A. Leong, Bitan Roy
In a Lorentz symmetric non-Hermitian (NH) Dirac theory, containing the canonical relativistic Hamiltonian accompanied by a masslike anti-Hermitian Dirac operator, when the associat…
Non-Hermitian catalysis of spontaneous symmetry breaking on Euclidean and hyperbolic lattices
Christopher A. Leong, Bitan Roy
Depending on the lattice geometry, the nearest-neighbor (NN) tight-binding model for free fermions gives rise to particle-hole symmetric emergent Dirac liquid, Fermi liquid, and fl…
Global phase diagram of two-dimensional dirty hyperbolic Dirac liquids
Christopher A. Leong, Daniel J. Salib, Bitan Roy
Within the framework of the canonical nearest-neighbor tight-binding model for spinless fermions, a family of two-dimensional bipartite hyperbolic lattices hosts massless Diraclike…
Strained hyperbolic Dirac fermions: Zero modes, flat bands, and competing orders
Christopher A. Leong, Bitan Roy
Starting from the nearest-neighbor tight-binding model on {10,3} and {14,3} hyperbolic lattices that, for a uniform hopping amplitude, gives rise to emergent Dirac fermions on a cu…
Amplified magnetic catalysis in non-Hermitian Euclidean and hyperbolic Dirac liquids
Christopher A. Leong, Bitan Roy
Due to their iconic linearly vanishing density of states near the zero-energy, half-filled two-dimensional Dirac materials in flat Euclidean and negatively-curved hyperbolic spaces…