Shanmuka Shivashankara

activity

20142026

most citedSimultaneous Explanation of the

R_{K}

and

R (D^{(*)})

Puzzles

287 citations · 397 across the 7 of their papers we have counts for

collaborators

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3 papers · 1 filter

hep-th2024

Unitarity constrains the quantum information metrics for particle interactions

Shanmuka Shivashankara, Hobbes Sprague

Unitarity provides mathematical and physical constraints on quantum information systems. e.g., in entanglement swapping, unitarity requires the same von Neumann entanglement entrop…

hep-th2024★ 5 cited

Regularized Entanglement Entropy of Electron-Positron Scattering with a Witness Photon

Shanmuka Shivashankara, Grace Gogliettino

Regularized quantum information metrics are calculated for the scattering process $e^{-} e^{+} \to γ, Z \to μ^{-} μ^{+}$ that has a witness photon entangled with the initial el…

hep-th2023★ 13 cited

Entanglement Entropy of Compton Scattering with a Witness

Shanmuka Shivashankara

Unitarity and the optical theorem are used to derive the reduced density matrices of Compton scattering in the presence of a witness particle. Two photons are initially entangled w…