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This article reviews trajectory surface hopping methods to study conformationally controlled photochemistry. Besides focusing on the linear response time-dependent density functional theory surface hopping method, it reviews the generation…

化学物理 · 物理学 2022-09-01 Enrico Tapavicza

Mixed-quantum classical (MQC) methods for simulating the dynamics of molecules at metal surfaces have the potential to accurately and efficiently provide mechanistic insight into reactive processes. Here, we introduce simple two-dimensional…

化学物理 · 物理学 2023-08-02 James Gardner , Scott Habershon , Reinhard J. Maurer

We carried out extensive studies to examine the performance of the fewest-switches surface hopping method in the description of the ultrafast intersystem crossing dynamic of various singlet-triplet (S-T) models by comparison with the…

化学物理 · 物理学 2019-05-22 Jiawei Peng , Yu Xie , Deping Hu , Zhenggang Lan

We present a novel semiclassical phase-space surface hopping approach that goes beyond the Born-Oppenheimer approximation and all existing surface hopping formalisms. We demonstrate that working with a correct phase-space electronic…

化学物理 · 物理学 2024-10-03 Xuezhi Bian , Yanze Wu , Tian Qiu , Tao Zhen , Joseph E. Subotnik

To accelerate the thermal equilibrium sampling of multi-level quantum systems, the infinite swapping limit of a recently proposed multi-level ring polymer representation is investigated. In the infinite swapping limit, the ring polymer…

化学物理 · 物理学 2018-03-14 Jianfeng Lu , Zhennan Zhou

We study the exact nuclear time-dependent potential energy surface (TDPES) for laser-induced electron localization with a view to eventually developing a mixed quantum-classical dynamics method for strong-field processes. The TDPES is…

化学物理 · 物理学 2015-06-15 Yasumitsu Suzuki , Ali Abedi , Neepa T. Maitra , E. K. U. Gross

Due to particle conservation, Canonical Molecular Dynamics (MD) simulations fail in the description of surface phase transitions involving coverage or lateral density changes. However, a step on the surface can act effectively as a source…

材料科学 · 物理学 2016-08-31 D. Passerone , U. Tartaglino , F. Ercolessi , E. Tosatti

In this work, we describe various improved implementations of the mapping approach to surface hopping (MASH) for simulating nonadiabatic dynamics. These include time-reversible and piecewise-continuous integrators, which is only formally…

化学物理 · 物理学 2026-03-31 J. Amira Geuther , Kasra Asnaashari , Jeremy O. Richardson

Two models involving particles moving by ``hopping'' in disordered media are investigated: I) A model glass-forming liquid is investigated by molecular dynamics under (pseudo-) equilibrium conditions. ``Standard'' results such as mean…

无序系统与神经网络 · 物理学 2007-05-23 Thomas B. Schroeder

The diagonal Born-Oppenheimer correction (DBOC) stems from the diagonal second derivative coupling term in the adiabatic representation, and it can have an arbitrary large magnitude when a gap between neighbouring Born-Oppenheimer (BO)…

化学物理 · 物理学 2016-05-02 Rami Gherib , Liyuan Ye , Ilya G. Ryabinkin , Artur F. Izmaylov

We present a highly efficient method to directly simulate the photodissociation followed by Coulomb explosion of methyl iodide. In order to achieve statistical reliability, more than 40,000 trajectories are calculated on accurate potential…

化学物理 · 物理学 2024-11-06 Yijue Ding , Loren Greenman , Daniel Rolles

Topological phenomena typically govern the behavior of delocalized waves, giving rise to robust transport in electronic, photonic, and mechanical systems. Whether similar principles can directly control the motion of a localized particle,…

流体动力学 · 物理学 2026-03-13 Ethan Andersson , Valeri Frumkin

A method is presented that can find the global minimum of very complex condensed matter systems. It is based on the simple principle of exploring the configurational space as fast as possible and of avoiding revisiting known parts of this…

材料科学 · 物理学 2007-05-23 Stefan Goedecker

The exact time-dependent potential energy surface driving the nuclear dynamics was recently shown to be a useful tool to understand and interpret the coupling of nuclei, electrons, and photons, in cavity settings. Here we provide a detailed…

Understanding the motion of particles with ligand-receptors is important for biomedical applications and material design. Yet, even among a single design, the prototypical DNA-coated colloids, seemingly similar micrometric particles hop or…

软凝聚态物质 · 物理学 2023-10-31 Jeana Aojie Zheng , Miranda Holmes-Cerfon , David J. Pine , Sophie Marbach

We address the issues of decoherence, frustrated hops and internal consistency in surface hopping. We demonstrate that moving away from an independent-trajectory picture is the strategy which allows us to propose a robust surface hopping…

化学物理 · 物理学 2025-09-01 Lea M. Ibele , Eduarda Sangiogo Gil , Peter Schürger , Rodrigue Noc , Federica Agostini

Intersystem crossing is a radiationless process that can take place in a molecule irradiated by UV-Vis light, thereby playing an important role in many environmental, biological and technological processes. This paper reviews different…

化学物理 · 物理学 2017-03-29 Sebastian Mai , Philipp Marquetand , Leticia González

We consider the quantum nonequilibrium dynamics of systems where fermionic particles coherently hop on a one-dimensional lattice and are subject to dissipative processes analogous to those of classical reaction-diffusion models. Particles…

统计力学 · 物理学 2023-05-31 Gabriele Perfetto , Federico Carollo , Juan P. Garrahan , Igor Lesanovsky

We show how the dynamically nonlocal formulation of classical nuclear motion in the presence of quantal electronic transitions presented many years ago by Pechukas can be localized in time using time dependent perturbation theory to give an…

chem-ph · 物理学 2009-10-22 D. F. Coker , L. Xiao

An extension of the CCS-method [Chem. Phys. 2004, 304, p. 103-120] for simulating non-adiabatic dynamics with quantum effects of the nuclei is put forward. The time-dependent Schr\"{o}dinger equation for the motion of the nuclei is solved…

化学物理 · 物理学 2016-07-27 Alexander Humeniuk , Roland Mitrić