Mixed quantum mechanical/molecular mechanical molecular dynamics simulations of biological systems in ground and electronically excited states

E Brunk, U Rothlisberger - Chemical reviews, 2015 - ACS Publications
The quantum nature of electrons and nuclei is manifested in countless biological events
including the rearrangements of electrons in biochemical reactions, electron and proton …

[HTML][HTML] Density functional theory for field emission from carbon nano-structures

Z Li - Ultramicroscopy, 2015 - Elsevier
Electron field emission is understood as a quantum mechanical many-body problem in
which an electronic quasi-particle of the emitter is converted into an electron in vacuum …

Exponential integrators in time-dependent density-functional calculations

D Kidd, C Covington, K Varga - Physical Review E, 2017 - APS
The integrating factor and exponential time differencing methods are implemented and
tested for solving the time-dependent Kohn-Sham equations. Popular time propagation …

Accurate time propagation method for the coupled Maxwell and Kohn-Sham equations

Y Li, S He, A Russakoff, K Varga - Physical Review E, 2016 - APS
An accurate method for time propagation of the coupled Maxwell and time-dependent Kohn-
Sham (TDKS) equation is presented. The new approach uses a simultaneous fourth-order …

[HTML][HTML] Accuracy and computational efficiency of real-time subspace propagation schemes for the time-dependent density functional theory

A Russakoff, Y Li, S He, K Varga - The Journal of chemical physics, 2016 - pubs.aip.org
Time-dependent Density Functional Theory (TDDFT) has become successful for its balance
of economy and accuracy. However, the application of TDDFT to large systems or long time …

Laser-induced electron emission from nanostructures: A first-principles study

JA Driscoll, S Bubin, K Varga - Physical Review B—Condensed Matter and …, 2011 - APS
Time-dependent density functional theory simulation of laser-induced ionization is
presented. Various test systems including a small wire-like molecule, C 12 H 14, as well as …

First-principles study of field emission from carbon nanotubes and graphene nanoribbons

JA Driscoll, B Cook, S Bubin, K Varga - journal of applied physics, 2011 - pubs.aip.org
A real-space, real-time implementation of time-dependent density functional theory is used
to study electron field emission from nanostructures. Carbon nanotubes and graphene …

Investigation of Metal and Non-Metal Doped Dimer and Trimer C60 Fullerene Chains as Prospective Spin Cluster Qubits

S Polad, S Erkoç - Journal of Computational and Theoretical …, 2011 - ingentaconnect.com
We have calculated the optimized geometries, electronic structures and spin distributions of
metal and non-metal elements Li, Na, N and P doped C60 fullerene dimers and trimers with …

Field electron emission images far away from a semi-infinitely long emitter: a multiscale simulation

W Wang, W Yang, Z Li - The Journal of Physical Chemistry C, 2018 - ACS Publications
Ab initio calculations reveal that in cold field electron emission from nanostructures, the
electron state of top priority not necessarily the occupied state with largest forward kinetic …

Characterization of DBD plasma actuator with ZnO nanowire arrays

H Wang, Z Hou, C Li, B Wang - Nanotechnology, 2021 - iopscience.iop.org
Researches in the plasma actuation are increasingly scrutinizing the methodology to
enhance the thrust density for the application in the aerodynamic flow control. In this paper …