165 citations · 2k across the 138 of their papers we have counts for
63 papers · 1 filter
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…
Two flavor neutrino oscillations in presence of non-Hermitian dynamics
Kritika Rushiya, Gaurav Hajong, Bhabani Prasad Mandal +1
We develop a consistent mathematical framework for studying two flavor neutrino oscillations in presence of non-Hermitian dynamics. We consider two approaches : (a) bi-orthonormal…
Quantum-to-semiclassical Husimi dynamics of non-Hermitian localization transitions
Pallabi Chatterjee, Bhabani Prasad Mandal, Ranjan Modak
The localization transition in the Hermitian Aubry-André model is known to have a clear classical origin, with the critical point being exactly predictable from an analysis of clas…
Lévy-index control of spectral singularities and coherent perfect absorption in non-Hermitian space-fractional quantum mechanics
Vibhav Narayan Singh, Mohammad Umar, Mohammad Hasan +1
We investigate the scattering features of a non-Hermitian rectangular potential within the framework of space-fractional quantum mechanics. Using the Riesz fractional derivative, w…
Quantum phase transitions and entanglement entropy in a non-Hermitian Jaynes-Cummings model
Gargi Das, Aritra Ghosh, Bhabani Prasad Mandal
In this paper, we describe some interesting properties of a non-Hermitian Jaynes-Cummings model. For this particular model, it is known that the Hilbert space can be described by i…
Tunneling time in non-Hermitian space fractional quantum mechanics
Mohammad Umar, Vibhav Narayan Singh, Bhabani Prasad Mandal
We investigate the tunneling time of a wave packet propagating through a non-Hermitian potential in space-fractional quantum mechanics. By applying the stationary…