3 papers
physics.bio-ph2026
Collective Emission in LH2 Assembly Beyond the Point-Dipole Approximation
Javed Akhtar, Himangshu Prabal Goswami
Collective emission in light-harvesting assemblies is governed by the local transition dipole and finite geometry of emitting units, a fact that point-dipole approximation obscures…
physics.chem-ph2025
Ergotropy of a Photosynthetic Reaction Center
Trishna Kalita, Manash Jyoti Sarmah, Javed Akhtar +1
We theoretically analyze the Photosystem II reaction center using a quantum master equation approach, where excitonic and charge-transfer rates are computed at the Redfield and Fö…
quant-ph2025
Fischer Information of a Nonequilibrium Anharmonic Donor-Acceptor Rectifier
Bitap Raj Thakuria, Trishna Kalita, Javed Akhtar +1
We investigate a nonequilibrium donor-acceptor quantum rectifier system coupled to an anharmonic vibrational mode, treating the vibrational dynamics both as a two-level system and…