4 papers
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…
Warp Drives and Martel-Poisson charts
Abhishek Chowdhury
We extend the construction of Alcubierre-Natário class of warp drives to an infinite class of spacetimes with similar properties. This is achieved by utilising the Martel-Poisson c…
Counting Black Holes as Algebraic Varieties
Abhishek Chowdhury, Sourav Maji
We calculate the helicity trace index for pure D-brane black holes using various techniques of computational algebraic geometry and find perfect agreemen…