5 papers · 1 filter
Quantum-Classical Hierarchical Equations of Motion
Amartya Bose
We develop a quantum-classical hierarchical equations of motion (QC-HEOM) approach for simulating non-Markovian open quantum systems. The method combines the ensemble-averaged clas…
Variational Adaptive Gaussian Decomposition: Scalable Quadrature-Free Time-Sliced Thawed Gaussian Dynamics
Rahul Sharma, Amartya Bose
Time-slicing has emerged as a strategy for incorporating semiclassical propagation into real-time path integral formulation and recovering full quantum dynamics. A central step is…
Path Integral Lindblad Dynamics in Presence of Time-Dependent Fields
Amartya Bose
The path integral Lindblad dynamics (PILD) method [A. Bose, J. Phys. Chem. Lett. 15(12), 3363-3368 (2024)] had been introduced as a way of incorporating the impact of certain empir…
Path integral Lindblad master equation through transfer tensor method & the generalized quantum master equation
Amartya Bose
Path integrals have, over the years, proven to be an extremely versatile tool for simulating the dynamics of open quantum systems. The initial limitations of applicability of these…
Analysis of Time-Evolution of Gaussian Wavepackets in Non-Hermitian Systems
Amartya Bose
Simulation and analysis of multidimensional dynamics of a quantum non-Hmeritian system is a challenging problem. Gaussian wavepacket dynamics has proven to be an intuitive semiclas…