Simulating chemistry on bosonic quantum devices

R Dutta, DGA Cabral, N Lyu, NP Vu… - Journal of Chemical …, 2024 - ACS Publications
Bosonic quantum devices offer a novel approach to realize quantum computations, where
the quantum two-level system (qubit) is replaced with the quantum (an) harmonic oscillator …

[HTML][HTML] Numerically “exact” approach to open quantum dynamics: The hierarchical equations of motion (HEOM)

Y Tanimura - The Journal of chemical physics, 2020 - pubs.aip.org
An open quantum system refers to a system that is further coupled to a bath system
consisting of surrounding radiation fields, atoms, molecules, or proteins. The bath system is …

HEOM‐QUICK: a program for accurate, efficient, and universal characterization of strongly correlated quantum impurity systems

LZ Ye, X Wang, D Hou, RX Xu… - Wiley Interdisciplinary …, 2016 - Wiley Online Library
Accurate characterization of correlated electronic states, as well as their evolution under
external fields or in dissipative environment, is essentially important for understanding the …

Polariton-mediated electron transfer via cavity quantum electrodynamics

A Mandal, TD Krauss, P Huo - The Journal of Physical Chemistry …, 2020 - ACS Publications
We investigate the polariton-mediated electron transfer reaction in a model system with
analytic rate constant theory and direct quantum dynamical simulations. We demonstrate …

Quantum coherence and its interplay with protein environments in photosynthetic electronic energy transfer

A Ishizaki, TR Calhoun, GS Schlau-Cohen… - Physical Chemistry …, 2010 - pubs.rsc.org
Recent experiments suggest that electronic energy transfer in photosynthetic pigment-
protein complexes involves long-lived quantum coherence among electronic excitations of …

Padé spectrum decompositions of quantum distribution functions and optimal hierarchical equations of motion construction for quantum open systems

J Hu, M Luo, F Jiang, RX Xu, Y Yan - The Journal of chemical physics, 2011 - pubs.aip.org
Padé spectrum decompositions of quantum distribution functions and optimal hierarchical
equations of motion construction for quantum open systems | The Journal of Chemical Physics …

Efficient propagation of the hierarchical equations of motion using the Tucker and hierarchical Tucker tensors

Y Yan, M Xu, T Li, Q Shi - The Journal of Chemical Physics, 2021 - pubs.aip.org
We develop new methods to efficiently propagate the hierarchical equations of motion
(HEOM) by using the Tucker and hierarchical Tucker (HT) tensors to represent the reduced …

[HTML][HTML] Detailed balance in mixed quantum–classical map** approaches

G Amati, JR Mannouch, JO Richardson - The Journal of Chemical …, 2023 - pubs.aip.org
The violation of detailed balance poses a serious problem for the majority of current
quasiclassical methods for simulating nonadiabatic dynamics. In order to analyze the …

Energy transfer in structured and unstructured environments: Master equations beyond the Born-Markov approximations

J Iles-Smith, AG Dijkstra, N Lambert… - The Journal of chemical …, 2016 - pubs.aip.org
We explore excitonic energy transfer dynamics in a molecular dimer system coupled to both
structured and unstructured oscillator environments. By extending the reaction coordinate …

Recovering Marcus theory rates and beyond without the need for decoherence corrections: The map** approach to surface hop**

JE Lawrence, JR Mannouch… - The Journal of Physical …, 2024 - ACS Publications
It is well-known that fewest-switches surface hop** (FSSH) fails to correctly capture the
quadratic scaling of rate constants with diabatic coupling in the weak-coupling limit, as …