39 citations · 141 across the 14 of their papers we have counts for
6 papers · 1 filter
Refractive index profiles for a -symmetric optical structure
Bijan Bagchi, Rahul Ghosh, Sauvik Sen
By mapping the scalar Helmholtz equation (SHE) to the Schrodinger form we investigate the behaviour of optical structure when the refractive index distribution a…
So (2, 1) algebra, local Fermi velocity, and position-dependent mass Dirac equation
Bijan Bagchi, Rahul Ghosh, Christiane Quesne
We investigate the (1+1)-dimensional position-dependent mass Dirac equation within the confines of so(2,1) potential algebra by utilizing the character of a spatial varying Fermi v…
Non-hermitian Dirac Hamiltonian in the presence of local Fermi velocity
Rahul Ghosh
We present a new approach to study a class of non-Hermitian (1+1)-dimensional Dirac Hamiltonian in the presence of local Fermi velocity. We apply the well known Nikiforov-Uvarov me…
Exceptional point in a coupled Swanson system
Bijan Bagchi, Rahul Ghosh, Sauvik Sen
We propose an interacting nonhermitian model described by a two-mode quadratic Hamiltonian along with an interaction term to locate and analyze the presence of an exceptional point…
Position-dependent mass Dirac equation and local Fermi velocity
Rahul Ghosh
We present a new approach to study (1+1)-dimensional Dirac equation in the background of an effective mass by exploiting the possibility of a position-dependent fermi velocity…
Dirac Hamiltonian in a supersymmetric framework
Bijan Bagchi, Rahul Ghosh
We investigate the most general form of the one-dimensional Dirac Hamiltonian in the presence of scalar and pseudoscalar potentials. To seek embedding of supersymmetry (SUSY)…