3 papers
physics.chem-ph2026
Persistent singlet electronic character in the multiexcitonic triplet-pair state of strongly coupled pentacene singlet fission dimers
Atandrita Bhattacharyya, Namana Venkatareddy, Sanjoy Patra +5
Singlet fission converts an optically excited singlet state into a spin-entangled triplet pair state (TT) that can, in principle, yield two free triplets for photovoltaics…
physics.chem-ph2025
Double excitations in molecules
Namana Venkatareddy, Victor Ghosh, H. R. Krishnamurthy +1
Double excitations in organic molecules have garnered significant interest as a result of their importance in singlet fission and photophysics. These excitations play a crucial rol…
cond-mat.mtrl-sci2025
Symmetries in zero and finite center-of-mass momenta excitons
Robin Bajaj, Namana Venkatareddy, H. R. Krishnamurthy +1
We present a symmetry-based framework for the analysis of excitonic states, incorporating both time-reversal and space-group symmetries. We demonstrate the use of time-reversal and…