18 citations · 42 across the 6 of their papers we have counts for
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A Quantum Circuit Model of Black Hole Evaporation with Tunable Semi-Causality Violation
Sourav Ballav, Wen-Yu Wen, Chi-Hsien Tai
We present a four-qubit quantum circuit model of black hole evaporation with a controlled violation of semi-causality, understood as the condition that information may fall into th…
Recursion relations for scattering amplitudes with massive particles II: massive vector bosons
Sourav Ballav, Arkajyoti Manna
Using the recently introduced recursion relations with covariant massive-massless shift, we study tree-level scattering amplitudes involving a pair of massive vector bosons and an…
Recursion relations for scattering amplitudes with massive particles
Sourav Ballav, Arkajyoti Manna
We use the recently developed massive spinor-helicity formalism [1] of Arkani- Hamed et al. to propose a new class of recursion relations for tree-level amplitudes in gauge theorie…
Modular properties of surface operators in N=2 SQCD
Sourav Ballav, Renjan Rajan John
We study half-BPS surface operators in N=2 supersymmetric QCD in four dimensions with gauge group SU(2) and four fundamental flavours. We compute the twisted chiral superpotential…
Surface operators in N=2 SQCD and Seiberg Duality
Sujay K. Ashok, Sourav Ballav, Marialuisa Frau +1
We study half-BPS surface operators in N=2supersymmetric asymptotically conformal gauge theories in four dimensions with SU(N) gauge group and 2N fundamental flavours using localiz…
Surface operators, dual quivers and contours
S. K. Ashok, S. Ballav, M. Billo' +5
We study half-BPS surface operators in four dimensional N=2 SU(N) gauge theories, and analyze their low-energy effective action on the four dimensional Coulomb branch using equivar…