24 citations · 58 across the 13 of their papers we have counts for
6 papers · 1 filter
-symmetry of Particle mixing theories and the equation of motion matrix
Kawaljeet Kaur, Biswajit Paul
A non-Hermitian complex scalar field model is considered from its $\mc{PT}$ symmetric aspect. A matrix constructed from the Euler-Lagrange equations of motion is utilized to analyz…
Removal of instabilities of the higher derivative theories in the light of antilinearity
Biswajit Paul, Himangshu Dhar, Biswajit Saha
Theories with higher derivatives involve linear instabilities in the Hamiltonian commonly known as Ostrogradski ghosts and can be viewed as a very serious problem during quantizati…
Ghosts in higher derivative Maxwell-Chern-Simon's theory and symmetry
Biswajit Paul, Himangshu Dhar, Biswajit Saha
Ghost fields in quantum field theory have been a long-standing problem. Specifically, theories with higher derivatives involve ghosts that appear in the Hamiltonian in the form of…
Treating Ostrogradski instability for Gallilean invariant Chern Simon's model via \mathcal{PT} symmetry
Biswajit Paul, Himangshu Dhar, Mangobinda Chowdhury +1
The Ostrogradski ghost problem that appears in higher derivative theories containing constraints has been considered here. Specifically we have considered systems where only the se…
Investigations In Higher Derivative Field Theories
Biswajit Paul
Canonical analysis leading to formal quantisation of the higher derivative theories are considered. The first order formalism is adopted where all the configuration space variables…
Gauge symmetry and Virasoro algebra in quantum charged rigid membrane -- a first order formalism
Biswajit Paul
The quantum charged rigid membrane model, which is a higher derivative theory has been considered to explore its gauge symmetries using a recently developed first order formalism \…