287 citations · 397 across the 7 of their papers we have counts for
7 papers
Regularized Compton double scattering via unitarity
Shanmuka Shivashankara, Isra Gashi
When two initially entangled photons each undergo Compton scattering, the scattered electrons become correlated. However, the final reduced density matrix of one scattered pair is…
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…
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 that has a witness photon entangled with the initial el…
Entanglement Entropy Distributions of a Muon Decay
Shanmuka Shivashankara, Patti Rizzo, Nicole Cafe
Divergences that occur in density matrices of decay and scattering processes are shown to be regularized by tracing and unitarity or the optical theorem. These divergences are regu…
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…
Decay in the Standard Model and with New Physics
Shanmuka Shivashankara, Wanwei Wu, Alakabha Datta
Recently hints of lepton flavor non-universality emerged when the BaBar Collaboration observed deviations from the standard model predictions in $R(D^{(*)}) \equiv {\cal B}({\bar B…
Simultaneous Explanation of the and Puzzles
Bhubanjyoti Bhattacharya, Alakabha Datta, David London +1
At present, there are several hints of lepton flavor non-universality. The LHCb Collaboration has measured , a…