90 citations · 259 across the 27 of their papers we have counts for
6 papers · 1 filter
Conformal Fisher information metric with torsion
Kunal Pal, Kuntal Pal, Tapobrata Sarkar
We consider torsion in parameter manifolds that arises via conformal transformations of the Fisher information metric, and define it for information geometry of a wide class of phy…
Time evolution of spread complexity in quenched Lipkin-Meshkov-Glick model
Mir Afrasiar, Jaydeep Kumar Basak, Bidyut Dey +2
We use the spread complexity of a time evolved state after a sudden quantum quench in the Lipkin-Meshkov-Glick (LMG) model prepared in the ground state as a probe of quantum phase…
Evolution of circuit complexity in a harmonic chain under multiple quenches
Kuntal Pal, Kunal Pal, Ankit Gill +1
We study Nielsen's circuit complexity in a periodic harmonic oscillator chain, under single and multiple quenches. In a multiple quench scenario, it is shown that the complexity sh…
Regularising the JNW and JMN naked singularities
Kunal Pal, Kuntal Pal, Pratim Roy +1
We extend the method of Simpson and Visser (SV) of regularising a black hole spacetime, to cases where the initial metric represents a globally naked singularity. We choose two par…
Analogue metric in a black bounce background
Kunal Pal, Kuntal Pal, Tapobrata Sarkar
The conventional approach of embedding an effective acoustic metric for sound motion in a background flat Minkowski space-time, has recently been extended to incorporate more gener…
Complexity in the Lipkin-Meshkov-Glick Model
Kunal Pal, Kuntal Pal, Tapobrata Sarkar
We study complexity in a spin system with infinite range interaction, via the paradigmatic Lipkin-Meshkov-Glick model, in the thermodynamic limit. Exact expressions for the Nielsen…