3 papers
quant-ph2020
Entropy uncertainty principle for Dirac system with mass jump
Pinaki Patra, Kalpana Biswas
Dependency on the preparation of state for the Heisenberg uncertainty principle can be removed with the help of entropy uncertainty principle. The shortness of the uncertainty prin…
quant-ph2020
Constraints on the choice of position dependent effective mass and external potential for the existence of Lewis-Riesenfeld invariance and quantum canonical transformation
Kalpana Biswas, Jyoti Prasad Saha, Pinaki Patra
Lewis-Riesenfeld -Ermakov's (LR) invariant method for the construction of time-dependent phase-space invariant is extended for the general quantum system with position-dependent ef…
physics.gen-ph2019
On the position dependent effective mass Hamiltonian
Kalpana Biswas, Jyoti Prasad Saha, Pinaki Patra
Noncommutivity of position and momentum makes it difficult to formulate the unambiguous structure of the kinetic part of Hamiltonian for the position-dependent effective mass (PDEM…