5 papers
Quantum transport and unified scaling law in graphene with polyadic Cantor electrostatic barriers
Sudhanshu Shekhar, Mohammad Umar, Bhabani Prasad Mandal
We study the quantum transport of Dirac electrons in graphene subjected to a polyadic Cantor-structured electrostatic potential. Using the superperiodic potential formalism, we obt…
A Gauge-Covariant Geometric Framework for Non-Hermitian Quantum Systems
Gargi Das, Sudhanshu Shekhar, Bhabani Prasad Mandal
We develop a comprehensive, gauge-covariant geometric framework for non-Hermitian quantum systems in the quasi-Hermitian regime, that is, the region of parameter space where the no…
Klein Tunneling in Uniaxial Strained Graphene under Super-Periodic Potential
Sudhanshu Shekhar, Bhabani Prasad Mandal, Anirban Dutta
In this article, we employ the transfer matrix method (TMM) to analytically explore the impact of uniaxial strain on electron scattering in graphene under locally periodic and supe…
Relativistic particles in super-periodic potentials: exploring graphene and fractal systems
Sudhanshu Shekhar, Bhabani Prasad Mandal, Anirban Dutta
In this article, we employ the transfer matrix method to investigate relativistic particles in super-periodic potentials (SPPs) of arbitrary order . We calculate the r…
Generating QES potentials supporting zero energy normalizable states for an extended class of truncated Calogero Sutherland model
Satish Yadav, Sudhanshu Shekhar, Bijan Bagchi +1
Motivated by recent interest in the search for generating potentials for which the underlying Schrödinger equation is solvable, we report in the recent work several situations when…