8 papers
Geometric Phonon Energy Pumping in a Layer-Hybridized Moiré Exciton Manifold
Bitap Raj Thakuria, Himangshu Prabal Goswami
Slow cyclic modulation of an open quantum system can generate a geometric contribution to its energy transfer statistics, separable from the dynamic background. In this work we con…
Coherence Estimation Beyond the Liouvillian Gap in a Finite Nonequilibrium System
Sonali Brahma, Trishna Kalita, Himangshu Prabal Goswami
We investigate the estimation of bath-induced coherence in a finite quantum system interacting with thermal reservoirs. Enhancement of coherence estimation is transient and the est…
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…
Thermodynamics of a biophotomimetic nonreciprocal quantum battery
Trishna Kalita, Manash Jyoti Sarmah, Himangshu Prabal Goswami
We propose a theoretical model of a fully functional nonreciprocal quantum battery inspired by the architecture of bacterial light-harvesting complexes. We assign functional roles…
Coherence in the Leak and Storage Kurtosis control Ergotropy in Quantum Batteries
Bitap Raj Thakuria, Trishna Kalita, Manash Jyoti Sarmah +1
We introduce a cavity-coupled finite quantum system which can act as a quantum battery by harnessing noise induced coherences. We apply the methodology of full counting statistics…
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…