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cond-mat.mes-hall2026
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…
cond-mat.str-el2026
Hidden-ordered Dirac fermions
Bitan Roy
I propose a Hermitian extension of the Lorentz-symmetric Dirac theory by complementing the associated Hamiltonian with another \emph{masslike} anticommuting Dirac operator. The res…
cond-mat.str-el2026★ 1 cited
Anisotropic marginal Fermi liquid for Coulomb interacting generalized Weyl fermions
Gabriel Malavé, Rodrigo Soto-Garrido, Bitan Roy +1
Owing to the power-law anisotropy in the quasiparticle dispersion, yielding an enhanced density of states, the effects of long range Coulomb interaction get amplified in three-dime…