Accurate molecular dynamics and nuclear quantum effects at low cost by multiple steps in real and imaginary time: Using density functional theory to accelerate wavefunction methods
Graph Chatbot
Chattez avec Graph Search
Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.
AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.
The ab initio mol. dynamics method developed by Car and Parrinello combines an electronic structure method based on d. functional theory (DFT) with a classical mol. dynamics scheme. This provides a powerful, parameter-free tool to study the dynamics of mol ...
A new method is presented for performing first-principles molecular-dynamics simulations of systems with variable occupancies. We adopt a matrix representation for the one-particle statistical operator to introduce a ''projected'' free en ...
An introduction to the Car-Parrinello (CP) method is given from the point of view of classical molecular dynamics. Here, a formulation is described that uses Vanderbilt's ultrasoft pseudopotentials, which yield generalized Kohn-Sham equations containing ov ...
We show that an ab initio molecular-dynamics scheme based on Vanderbilt ultrasoft pseudopotentials and a plane-wave expansion for the electronic orbitals allows one to perform accurate calculations for large systems containing tightly bound d-electron stat ...
Structural, electronic, and vibrational properties of NanMg clusters (n = 6-9, 18) have been detd. using the Car-Parrinello method. We find that in the energetically preferred structures the magnesium impurity is never located at the center of the cluster. ...
A review. The theor. modeling of chem. active transition metal (TM) centers is a notoriously difficult task. The metal-ligand interactions in these complexes are often highly directional and the concoction of suitable analytic interaction potentials can be ...
A review of the enantioselective hydrosilylation of styrene catalyzed by Pd0 species generated in situ from dichloro{1-{(R)-1-[(S)2(diphenylphosphino kP)ferrocenyl]ethyl}-3-trimethylphenyl-5-1H-pyrazole-kN}palladium, 1, was studied in detail by ab initio m ...
We have studied the femtosecond dynamics of excitonic resonances in quantum well microcavities under strong excitation. Very strong non-linearities are observed, which bear clear resemblance to the non-linearities of an atomic two-level system. The fact th ...
We present a highly scalable DFT-based QM/MM implementation developed within MiMiC, a recently introduced multiscale modeling framework that uses a loose-coupling strategy in conjunction with a multiple-program multiple-data (MPMD) approach. The computatio ...