Quantum‐classical path integral evaluation of reaction rates with a near‐equilibrium flux formulation

A Bose, N Makri - International Journal of Quantum Chemistry, 2021 - Wiley Online Library
Quantum‐classical formulations of reactive flux correlation functions require the partial Weyl–
Wigner transform of the thermalized flux operator, whose numerical evaluation is unstable …

Path-integral approximations to quantum dynamics

SC Althorpe - The European Physical Journal B, 2021 - Springer
Imaginary-time path-integral or 'ring-polymer'methods have been used to simulate quantum
(Boltzmann) statistical properties since the 1980s. This article reviews the more recent …

Path integrals for nonadiabatic dynamics: Multistate ring polymer molecular dynamics

N Ananth - Annual Review of Physical Chemistry, 2022 - annualreviews.org
This review focuses on a recent class of path-integral-based methods for the simulation of
nonadiabatic dynamics in the condensed phase using only classical molecular dynamics …

Boltzmann-conserving classical dynamics in quantum time-correlation functions:“Matsubara dynamics”

TJH Hele, MJ Willatt, A Muolo… - The Journal of Chemical …, 2015 - pubs.aip.org
We show that a single change in the derivation of the linearized semiclassical-initial value
representation (LSC-IVR or “classical Wigner approximation”) results in a classical dynamics …

New phase space formulations and quantum dynamics approaches

X He, B Wu, Y Shang, B Li, X Cheng… - Wiley Interdisciplinary …, 2022 - Wiley Online Library
We report recent progress on the phase space formulation of quantum mechanics with
coordinate‐momentum variables, focusing more on new theory of (weighted) constraint …

A perspective on the investigation of spectroscopy and kinetics of complex molecular systems with semiclassical approaches

R Conte, C Aieta, M Cazzaniga… - The Journal of Physical …, 2024 - ACS Publications
In this Perspective we show that semiclassical methods provide a rigorous hierarchical way
to study the vibrational spectroscopy and kinetics of complex molecular systems. The time …

Learning Decoherence Time Formulas for Surface Hopping from Quantum Dynamics

C Shao, Z Shi, J Xu, L Wang - The Journal of Physical Chemistry …, 2023 - ACS Publications
Surface hopping simulations have achieved great success in many different fields, but their
reliability has long been limited by the overcoherence problem. We here present a general …

Path-integral dynamics of water using curvilinear centroids

G Trenins, MJ Willatt, SC Althorpe - The Journal of Chemical Physics, 2019 - pubs.aip.org
We develop a path-integral dynamics method for water that resembles centroid molecular
dynamics (CMD), except that the centroids are averages of curvilinear, rather than …

A new perspective for nonadiabatic dynamics with phase space mapping models

X He, J Liu - The Journal of Chemical Physics, 2019 - pubs.aip.org
Based on the recently developed unified theoretical framework [J. Liu, J. Chem. Phys. 145
(20), 204105 (2016)], we propose a new perspective for studying nonadiabatic dynamics …

A semiclassical framework for mixed quantum classical dynamics

S Malpathak, MS Church, N Ananth - The Journal of Physical …, 2022 - ACS Publications
Semiclassical (SC) approximations for quantum dynamic simulations in complex chemical
systems range from rigorously accurate methods that are computationally expensive to …