141 citations · 693 across the 30 of their papers we have counts for
5 papers · 1 filter
A reappraisal of Lagrangians with non-quadratic velocity dependence and branched Hamiltonians
Bijan Bagchi, Aritra Ghosh, Miloslav Znojil
Time and again, non-conventional forms of Lagrangians with non-quadratic velocity dependence have found attention in the literature. For one thing, such Lagrangians have deep conne…
Branched Hamiltonians for a class of Velocity Dependent Potentials
Bijan Bagchi, Syed M. Kamil, Tarun R. Tummuru +2
Hamiltonians that are multivalued functions of momenta are of topical interest since they correspond to the Lagrangians containing higher-degree time derivatives. Incidentally, suc…
Rational extensions of the trigonometric Darboux-Pöschl-Teller potential based on para-Jacobi polynomials
B. Bagchi, Y. Grandati, C. Quesne
The possibility for the Jacobi equation to admit in some cases general solutions that are polynomials has been recently highlighted by Calogero and Yi, who termed them para-Jacobi…
On Quantized Lienard Oscillator and Momentum Dependent Mass
B. Bagchi, A. Ghose Choudhury, P. Guha
We examine the analytical structure of the nonlinear Lienard oscillator and show that it is a bi-Hamiltonian system depending upon the choice of the coupling parameters. While one…
Comment on `Supersymmetry, PT-symmetry and spectral bifurcation'
B. Bagchi, C. Quesne
We demonstrate that the recent paper by Abhinav and Panigrahi entitled `Supersymmetry, PT-symmetry and spectral bifurcation' [Ann.\ Phys.\ 325 (2010) 1198], which considers two dif…