23 citations · 104 across the 22 of their papers we have counts for
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Chern-Simons Gauge Invariance and Boundary Conformal Fields
Kumar Abhinav, Samir K. Paul
The topological non-Abelian Chern-Simons theory with a boundary is shown to require a scalar field companion in order to preserve overall gauge-invariance both in the 3 dimensional…
Efimov-like Resonances in Planar QED
K. Abhinav, P. K. Panigrahi
It is shown that planar topological effective gauge theory with dynamics, acquires corrections to angular momentum beyond the well-known topological photon spin, the latter arising…
Solitons and spin transport in graphene boundary
Kumar Abhinav, Vivek M Vyas, Prasanta K Panigrahi
It is shown that in (2+1)-dimensional condensed matter systems, induced gravitational Chern-Simons (CS) action can play a crucial role for coherent spin transport in a finite geome…
Conservation Law for Massive Scale-Invariant Photons in Weyl-Invariant Gravity
Aradhya Shukla, Kumar Abhinav, Prasanta K. Panigrahi
It is demonstrated that a Stueckelberg-type gauge theory, coupled to the scalar-tensor theory of gravity, is invariant under both gauge and Weyl transformations. Unlike the pure St…
Quantum and Thermal Fluctuations and Pair-breaking in Planar QED
Kumar Abhinav, Prasanta K. Panigrahi
Planar quantum electrodynamics, in presence of tree-level Chern-Simons term, is shown to support bound state excitations, with a threshold, not present for the pure Chern-Simons th…
Controlled Spin Transport in Planar Systems Through Topological Exciton
Kumar Abhinav, Prasanta K. Panigrahi
It is shown that a charge-neutral spin-1 exciton, realizable only in planar systems like graphene, can effectively be used for controlled spin transport in such media. The excitoni…