OQuPy: A Python package to efficiently simulate non-Markovian open quantum systems with process tensors

GE Fux, P Fowler-Wright, J Beckles, EP Butler… - The Journal of …, 2024 - pubs.aip.org
Non-Markovian dynamics arising from the strong coupling of a system to a structured
environment is essential in many applications of quantum mechanics and emerging …

Quantum correlation functions through tensor network path integral

A Bose - The Journal of Chemical Physics, 2023 - pubs.aip.org
Tensor networks have historically proven to be of great utility in providing compressed
representations of wave functions that can be used for the calculation of eigenstates …

Impact of Loss Mechanisms on Linear Spectra of Excitonic and Polaritonic Aggregates

D Sharma, A Bose - Journal of Chemical Theory and Computation, 2024 - ACS Publications
The presence of loss mechanisms governed by empirical timescales can profoundly affect
the dynamics in molecular systems, leading to changes in their spectra. However …

Impact of spatial inhomogeneity on excitation energy transport in the Fenna–Matthews–Olson complex

A Bose, PL Walters - The Journal of Physical Chemistry B, 2023 - ACS Publications
The dynamics of the excitation energy transfer (EET) in photosynthetic complexes is an
interesting question both from the perspective of fundamental understanding and the …

Incorporation of Empirical Gain and Loss Mechanisms in Open Quantum Systems through Path Integral Lindblad Dynamics

A Bose - The Journal of Physical Chemistry Letters, 2024 - ACS Publications
Path integrals offer a robust approach for simulating open quantum dynamics with
advancements transcending initial system size limitations. However, accurately modeling …

Real-Time Simulation of Open Quantum Spin Chains with the Inchworm Method

G Wang, Z Cai - Journal of Chemical Theory and Computation, 2023 - ACS Publications
We study the real-time simulation of open quantum systems, where the system is modeled
by a spin chain with each spin associated with its own harmonic bath. Our method couples …

Path integral Lindblad master equation through transfer tensor method & the generalized quantum master equation

A Bose - arxiv preprint arxiv:2402.08518, 2024 - arxiv.org
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 …

Adaptive Kink Filtration: Achieving Asymptotic Size-Independence of Path Integral Simulations Utilizing the Locality of Interactions

A Bose - arxiv preprint arxiv:2409.14695, 2024 - arxiv.org
Recent method developments involving path integral simulations have come a long way in
making these techniques practical for studying condensed phase non-equilibrium …