activity
20242026
collaborators

6 papers

hep-th2026

Hall transports from Taub-NUT AdS black holes

Mohd Aariyan Khan, Hemant Rathi, Dibakar Roychowdhury

We compute Hall transport coefficients associated with Taub-NUT AdS black holes in four space-time dimensions using the probe D-brane approach. In particular, we examine the effect…

hep-th2026

Probing sine dilaton gravity with flow central charge

Paramesh Mahapatra, Hemant Rathi, Dibakar Roychowdhury

We construct a holographic c-function for sine dilaton gravity (sDG) in the domain wall gauge. We show the equivalence between sDG and the two copies of Liouville conformal field t…

hep-th2025

Metallic transports from Taub-NUT AdS black holes

Mohd Aariyan Khan, Hemant Rathi, Dibakar Roychowdhury

We compute holographic DC conductivity associated with the Taub-NUT- black holes following the probe D-brane approach. In particular, we examine the effects of frame draggin…

hep-th2025

Holographic central charge for sine dilaton gravity

Paramesh Mahapatra, Hemant Rathi, Dibakar Roychowdhury

In this paper, we calculate the holographic central charge () associated with sine dilaton gravity (sDG) in the semiclassical limit. In the low energy limit, the sDG flows…

hep-th2025

Topology of black hole phase transition in JT gravity

Hemant Rathi, Dibakar Roychowdhury

We present a JT gravity setup coupled with and Yang-Mills fields in two dimensions that reveals the onset of a small black hole to large black hole phase transition…

hep-th2024

Carrollian expansion of Born-Infeld Electrodynamics

Aditya Mehra, Hemant Rathi, Dibakar Roychowdhury

In this paper, we carry out a detailed investigation of Born-Infeld Electrodynamics in the Carrollian limit. We explore these theories by looking at expansion in a small c limit at…