skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fast Real-Time Time-Dependent Density Functional Theory Calculations with the Parallel Transport Gauge

Journal Article · · Journal of Chemical Theory and Computation
ORCiD logo [1];  [1];  [2]; ORCiD logo [3]
  1. Univ. of California, Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Real-time time-dependent density functional theory (RT-TDDFT) is known to be hindered by the very small time step (attosecond or smaller) needed in the numerical simulation, because of the fast oscillation of electron wave functions, which significantly limits its range of applicability for the study of ultrafast dynamics. In this paper, we demonstrate that such oscillation can be considerably reduced by optimizing the gauge choice using the parallel transport formalism. RT-TDDFT calculations can thus be significantly accelerated using a combination of the parallel transport gauge and implicit integrators, and the resulting scheme can be used to accelerate any electronic structure software that uses a Schrödinger representation. Here, using absorption spectrum, ultrashort laser pulse, and Ehrenfest dynamics calculations for example, we show that the new method can utilize a time step that is on the order of 10–100 attoseconds using a planewave basis set. Thanks to the significant increase of the size of the time step, we also demonstrate that the new method is more than 10 times faster, in terms of the wall clock time, when compared to the standard explicit fourth-order Runge–Kutta time integrator for silicon systems ranging from 32 to 1024 atoms.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of California, Oakland, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC02-05CH11231; SC0017867
OSTI ID:
1543629
Journal Information:
Journal of Chemical Theory and Computation, Vol. 14, Issue 11; ISSN 1549-9618
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

References (21)

Electronic excitations: density-functional versus many-body Green’s-function approaches journal June 2002
Time-dependent local-density approximation in real time journal August 1996
Time-Dependent Density-Functional Theory book December 2011
Time-dependent density-functional theory in massively parallel computer architectures: the octopus project journal May 2012
Real-time time-dependent density functional theory approach for frequency-dependent nonlinear optical response in photonic molecules journal October 2007
Role of Electronic Excitations in Ion Collisions with Carbon Nanostructures journal July 2007
Propagators for the time-dependent Kohn–Sham equations journal August 2004
Plane-wave pseudopotential implementation of explicit integrators for time-dependent Kohn-Sham equations in large-scale simulations journal December 2012
Propagators for the Time-Dependent Kohn–Sham Equations: Multistep, Runge–Kutta, Exponential Runge–Kutta, and Commutator Free Magnus Methods journal April 2018
Numerical integrators for quantum dynamics close to the adiabatic limit journal April 2003
Wannier functions and ℤ2 invariants in time-reversal symmetric topological insulators journal February 2017
Iterative Procedures for Nonlinear Integral Equations journal October 1965
From Quantum to Classical Molecular Dynamics: Reduced Models and Numerical Analysis journal September 2008
Adaptive local basis set for Kohn–Sham density functional theory in a discontinuous Galerkin framework I: Total energy calculation journal February 2012
DGDFT: A massively parallel method for large scale density functional theory calculations journal September 2015
Generalized Gradient Approximation Made Simple journal October 1996
Optimized norm-conserving Vanderbilt pseudopotentials journal August 2013
Optimization algorithm for the generation of ONCV pseudopotentials journal November 2015
turboTDDFT – A code for the simulation of molecular spectra using the Liouville–Lanczos approach to time-dependent density-functional perturbation theory journal August 2011
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials journal September 2009
Accuracy and computational efficiency of real-time subspace propagation schemes for the time-dependent density functional theory journal May 2016

Cited By (2)

Propagation of maximally localized Wannier functions in real-time TDDFT journal May 2019
Propagation of maximally localized Wannier functions in real-time TDDFT text January 2019

Figures / Tables (11)


Similar Records

Parallel transport dynamics for mixed quantum states with applications to time-dependent density functional theory
Journal Article · Fri Nov 19 00:00:00 EST 2021 · Journal of Computational Physics · OSTI ID:1543629

Algorithm advances and applications of time‐dependent first‐principles simulations for ultrafast dynamics
Journal Article · Fri Oct 01 00:00:00 EDT 2021 · Wiley Interdisciplinary Reviews: Computational Molecular Science · OSTI ID:1543629

Velocity-gauge real-time TDDFT within a numerical atomic orbital basis set
Journal Article · Wed Feb 07 00:00:00 EST 2018 · Computer Physics Communications · OSTI ID:1543629