28 citations · 131 across the 20 of their papers we have counts for
20 papers
Symplectic Grassmannian description of the Coulomb branch three and four point amplitudes
Veronica Calvo Cortes, Yassine El Maazouz, Subramanya Hegde +1
We present a formulation of the three- and four-point amplitudes on the Coulomb branch of N=4 SYM as integrals over the symplectic Grassmannian. We demonstrate that their kinematic…
Only Flat Spacetime is Full BPS in Four Dimensional N=3 and N=4 Supergravity
Abhinava Bhattacharjee, Subramanya Hegde, Bindusar Sahoo
We investigate the fully supersymmetric solutions in a class of N=3 and N=4 higher derivative Poincaré supergravity theories. These class of theories are obtained within the framew…
Differential Representation for Carrollian Correlators
Shankhadeep Chakrabortty, Subramanya Hegde, Arpit Maurya
The differential representation of AdS correlators offers a framework to express exchange Witten diagrams as functions of non-local differential operators applied to contact Witten…
Supersymmetric Index for Half BPS Black Holes in N=2 Supergravity with Higher Curvature Corrections
Subramanya Hegde, Ashoke Sen, P Shanmugapriya +1
We compute the supersymmetric index of half BPS black holes in N=2 supergravity with higher curvature corrections and show that the result agrees with the degeneracy of supersymmet…
Duality defects in -type Niemeier lattice CFTs
Sachin Grover, Subramanya Hegde, Dileep P. Jatkar
We discuss the construction of duality defects in meromorphic CFTs that correspond to Niemeier lattices. We will illustrate our constructions for the -type lattices. We…
On-shell functions on the Coulomb branch of SYM
Md. Abhishek, Subramanya Hegde, Dileep P. Jatkar +2
We study on-shell functions in the kinematic space for the Coulomb branch of SYM. We construct BCFW bridges that help us build bigger on-shell functions. As a conse…
Killing Spinors for Finite Temperature Euclidean Solutions at the BPS Bound
Subramanya Hegde, Amitabh Virmani
In a recent paper [arXiv:2308.00038], Anupam, Chowdhury, and Sen conjectured that the finite temperature Euclidean five-dimensional Cvetic-Youm solution saturating the BPS bound is…
Loop Amplitudes in the Coulomb Branch of Super-Yang-Mills Theory
Md. Abhishek, Subramanya Hegde, Dileep P. Jatkar +2
We study four point planar loop amplitudes at an arbitrary point in the Coulomb branch of super-Yang-Mills theory. We study two particle unitary cuts up to four loo…
Higher derivative invariants in four dimensional N=3 Poincare supergravity
Subramanya Hegde, Madhu Mishra, Debangshu Mukherjee +1
In this paper, we use the superconformal approach to derive the higher derivative action for N = 3 Poincare supergravity in four space-time dimensions. We first study the coupling…
Scattering Amplitudes and BCFW in Theory
Md. Abhishek, Subramanya Hegde, Dileep P. Jatkar +1
We use massive spinor helicity formalism to study scattering amplitudes in super-Yang-Mills theory in four dimensions. We compute the amplitudes at an arbitrary p…
N = 3 Conformal Supergravity in Four Dimensions
Subramanya Hegde, Madhu Mishra, Bindusar Sahoo
In this paper, we derive the action for conformal supergravity in four space-time dimensions. We construct a density formula for conformal supergravity based on the sup…
Defect Partition Function from TDLs in Commutant Pairs
Subramanya Hegde, Dileep P. Jatkar
We study topological defect lines in two character rational conformal field theories. Among them one set of two character theories are commutant pairs in conformal field…
One-loop integrand from generalised scattering equations
Md. Abhishek, Subramanya Hegde, Arnab Priya Saha
Generalised bi-adjoint scalar amplitudes, obtained from integrations over moduli space of punctured , are novel extensions of the CHY formalism. These amplitudes…
Double Soft Theorem for Generalised Biadjoint Scalar Amplitudes
Md. Abhishek, Subramanya Hegde, Dileep P. Jatkar +1
We study double soft theorem for the generalised biadjoint scalar field theory whose amplitudes are computed in terms of punctures on . We find that whenever the…
Relaxed hypermultiplet in four dimensional N=2 conformal supergravity
Subramanya Hegde, Bindusar Sahoo, Aravindhan Srinivasan
Superconformal matter multiplets play a crucial role in the construction of Poincare supergravity invariants. Off-shell multiplets allow for construction of general matter coupling…
New higher derivative action for tensor multiplet in N=2 conformal supergravity in four dimensions
Subramanya Hegde, Bindusar Sahoo
We will use the covariant superform approach to develop a new density formula for conformal supergravity which is based on a fermionic multiplet whose lowest compon…
Comment on "The N = 3 Weyl Multiplet in Four Dimensions"
Subramanya Hegde, Bindusar Sahoo
N = 3 Weyl multiplet in four dimensions was first constructed in J van Muiden et al (2017) where the authors used the current multiplet approach to obtain the linearized transforma…
dilaton Weyl multiplet in 4D supergravity
Daniel Butter, Subramanya Hegde, Ivano Lodato +1
We construct the dilaton Weyl multiplet for conformal supergravity in four dimensions. Beginning from an on-shell vector multiplet coupled to the standard Weyl multiplet, the…
A 24+24 real scalar multiplet in four dimensional N=2 conformal supergravity
Subramanya Hegde, Ivano Lodato, Bindusar Sahoo
Starting from the 48+48 component multiplet of supercurrents for a rigid N=2 tensor multiplet in four spacetime dimensions, we obtain the transformation of the linearized supergrav…
Geometric Multiaxial Representation of N-qubit Mixed Symmetric Separable States
Suma SP, Swarnamala Sirsi, Subramanya Hegde +1
Study of an N qubit mixed symmetric separable states is a long standing challenging problem as there exist no unique separability criterion. In this regard, we take up the N-qubit…