Bijan Bagchi

activity

19972026

most citedGeneralized Continuity Equation and Modified Normalization in PT-Symmetric Quantum Mechanics

141 citations · 693 across the 30 of their papers we have counts for

collaborators

Showing 2025Show all

3 papers · 1 filter

quant-ph2025

Quasi-harmonic spectra from branched Hamiltonians

Aritra Ghosh, Bijan Bagchi, A. Ghose-Choudhury +2

We revisit the canonical quantization to assess the spectrum of the modified Emden equation $x ¨ + k x x ˙ + ω^{2} x + \frac{k ^{2}}{9} x^{3} = 0$ , which is an isochronous case of t…

gr-qc2025

Painlevé-Gullstrand coordinates for Kiselev black holes

Bijan Bagchi, Sauvik Sen

We investigate the implications provided by the modified Painlevé-Gullstrand coordinates in the context of quintessence for the Kiselev black hole. In this regard, we set up a full…

quant-ph2025★ 4 cited

Isochronous oscillator with a singular position-dependent mass and its quantization

Aritra Ghosh, Bhabani Prasad Mandal, Bijan Bagchi

In this paper, we present an analysis of the equation $x ¨ - (1/2 x) x ˙^{2} + 2 ω^{2} x - 1/8 x = 0$ , where $ω > 0$ and $x = x (t)$ is a real-valued variable. We first discuss th…