6 papers
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…
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…
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…
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…
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…
Information Scrambling with Higher-Form Fields
Karunava Sil, Sourav Maji, Stavros Christodoulou +1
The late time behaviour of OTOCs involving generic non-conserved local operators show exponential decay in chaotic many body systems. However, it has been recently observed that fo…