42 citations · 75 across the 10 of their papers we have counts for
11 papers
Boundary-Value Problem in Type IIB Supergravity and Holography
Soumya Adhikari, Junho Hong, Chanyoung Joung +2
In precision holography, the Euclidean on-shell action of type IIB supergravity often fails to reproduce the leading large- free energy of the dual field theory: the type IIB ps…
The Routh of the Attractor Mechanism
Arghya Chattopadhyay, Alessio Marrani, Sourav Roychowdhury
We investigate and clarify various aspects of the effective dynamics of Maxwell-Einstein-scalar theories in the background of static, spherically symmetric and asymptotically flat…
BCFW like recursion for Deformed Associahedron
Sujoy Mahato, Sourav Roychowdhury
In this paper, we explore the applicability of the BCFW-like recursion relations \cite{He:2018svj,Yang:2019esm} to a wider class of positive geometries. Previously it was found in…
Integrability and non-integrability for holographic dual of Matrix model and non-Abelian T-dual of AdSS
Jitendra Pal, Sourav Roychowdhury
In this paper we study integrability and non-integrability for type-IIA supergravity background dual to deformed plane wave matrix model. From the bulk perspective, we estimate var…
Integrability and non-integrability for marginal deformations of 4d SCFTs
Jitendra Pal, Sourav Roychowdhury, Arindam Lala +1
We study integrability and non-integrability for marginal deformations of 4d SCFTs. We estimate various chaos indicators for the bulk theory which clearly shows the…
Spin spectrum for marginal deformations of 4d SCFTs
Sourav Roychowdhury, Dibakar Roychowdhury
We compute spin spectrum associated with massive graviton fluctuations in -deformed Gaiotto-Maldacena background those are holographically dual to marginal deformations of…
Penrose limits in massive type-IIA AdS background
Sourav Roychowdhury, Prasanta K. Tripathy
In this paper we consider the non-Abelian T-dual geometry of the type supergravity theory on background along a convenient subgroup of the…
Heterotic Kerr-Schild Double Field Theory and its double Yang-Mills formulation
Eric Lescano, Sourav Roychowdhury
We present a formulation of heterotic Double Field Theory (DFT), where the fundamental fields are in representations. The theory is obtained splitting an dualit…
Penrose limits in non-Abelian T-dual of Klebanov-Tseytlin Background
Sourav Roychowdhury, Prasanta K. Tripathy
In this paper we consider the Klebanov-Tseytlin background and its non-Abelian T-dual geometry along a suitably chosen subgroup of isometries. We analyse the Penrose limits…
The non-Abelian T-dual of Klebanov-Witten Background and its Penrose Limits
Sourav Roychowdhury, Prasanta K. Tripathy
In this paper we consider both Abelian as well as non-Abelian T-duals of the Klebanov-Witten background and inspect their various Penrose limits. We show that these backgrounds adm…
A New Model for Strange Stars
Debabrata Deb, Sourav Roy Chowdhury, Saibal Ray +1
In the present work, we attempt to find a new class of solutions for the spherically symmetric perfect fluid sphere by employing the Homotopy Perturbation Method (HPM), a new tool…