activity
20242026
most citedSpectral representation in Klein space: simplifying celestial leaf amplitudes

8 citations · 8 across the 5 of their papers we have counts for

collaborators

8 papers

hep-th2026

Tropical Open Strings in a Kalb-Ramond Background

Sarthak Duary, Vi Hong, Sourav Maji

We study tropical open strings arising from the analytically continued action of tropological sigma models in the presence of a constant Kalb-Ramond background. We show that the ba…

hep-th2026

BRST quantization of Carroll-Weyl gauged null strings

Sarthak Duary, Sourav Maji

We study the BRST quantization of the null string after completing its local gauge symmetry by Carroll-Weyl transformations. The resulting worldsheet theory possesses three first-c…

hep-th2026

Path integral quantization of null bosonic strings with Carroll-Weyl ghosts

Sarthak Duary, Sourav Maji

We revisit the path integral quantization of the null bosonic string from the viewpoint that all local gauge symmetries of the Carrollian worldsheet must be gauge fixed before the…

hep-th2026

Covariant phase space approach to noncommutativity in tensile and tensionless open strings

Pratik K. Das, Sarthak Duary, Sourav Maji

We study noncommutativity in open strings using the covariant phase space formalism. For tensile open strings in a constant Kalb-Ramond background, we show that the (pre)-symplecti…

hep-th2026

Pure D-brane Black Holes: BPS Counting and non-BPS Vacua

Abhishek Chowdhury, Sourav Maji

In this paper, we present a unified computational framework to analyze the microscopic vacuum structure of 4-charge extremal black holes in Type IIA string theory, applying techniq…

hep-th2025

From closed to open strings: the tensionless route in Kalb-Ramond background and noncommutativity

Sarthak Duary, Sourav Maji

We study tensionless bosonic strings propagating in the presence of a constant Kalb--Ramond background and show how closed strings undergo a transition into open strings. Working i…