Assessment of a range-separated orbital-optimised random-phase approximation electron correlation method
Sign Up to like & getrecommendations! Published in 2018 at "Theoretical Chemistry Accounts"
DOI: 10.1007/s00214-018-2363-4
Abstract: A range-separated short-range DFT (density functional theory) long-range RPA (random-phase approximation) electron correlation method has been derived that is fully optimised with respect to variations in the orbitals and orbital eigenvalues. The method both exhibits… read more here.
Keywords: correlation method; random phase; range separated; range ... See more keywords
Security enhancement of double random phase encryption with a hidden key against ciphertext only attack
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.02.064
Abstract: Abstract In this paper, we propose a security enhanced double random phase encoding (DRPE) encryption system against common ciphertext only attacks (COA). We point out one common weakness of COA schemes that the cracked plaintext… read more here.
Keywords: hidden key; security; encryption; random phase ... See more keywords
Single-random-phase holographic encryption of images
Sign Up to like & getrecommendations! Published in 2017 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2016.01.017
Abstract: Abstract In this paper, a method is proposed for encrypting an optical image onto a phase-only hologram, utilizing a single random phase mask as the private encryption key. The encryption process can be divided into… read more here.
Keywords: phase; image; hologram; source image ... See more keywords
A robust surface recover algorithm based on random phase noise correction for white light interferometry
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2020.106016
Abstract: Abstract White light scanning interferometry is a very important technique for nanometrology. In this paper, a robust white light interference signal processing algorithm using random phase noise correction method is proposed. By analyzing the phase… read more here.
Keywords: phase; algorithm; phase noise; random phase ... See more keywords
Efficient Method for the Computation of Frozen-Core Nuclear Gradients within the Random Phase Approximation.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.2c00774
Abstract: A method for the evaluation of analytical frozen-core gradients within the random phase approximation is presented. We outline an efficient way to evaluate the response of the density of active electrons arising only when introducing… read more here.
Keywords: core; within random; approximation; frozen core ... See more keywords
Random Phase Approximation Applied to Many-Body Noncovalent Systems.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.9b00979
Abstract: The random phase approximation (RPA) has received a considerable interest in the field of modeling systems where noncovalent interactions are important. Its advantages over widely used density functional theory (DFT) approximations are the exact treatment… read more here.
Keywords: phase approximation; many body; approximation applied; random phase ... See more keywords
Multiple-image encryption scheme via compressive sensing and orthogonal encoding based on double random phase encoding
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Modern Optics"
DOI: 10.1080/09500340.2018.1498547
Abstract: ABSTRACT We propose an optical multiple-image encryption scheme based on compressive sensing and double random phase encoding. The orthogonal encoding method is used for integrating and extracting multiple-image compressed sampling data. In the encryption process,… read more here.
Keywords: image; phase encoding; multiple image; random phase ... See more keywords
Phase stability of the argon crystal: first-principles study based on random phase approximation plus renormalized single excitation corrections
Sign Up to like & getrecommendations! Published in 2022 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ac5c19
Abstract: The energy differences between the face-centered cubic (fcc) and hexagonal closed packed (hcp) structures of the argon (Ar) crystal are studied using the first-principles electronic-structure approach at the level of random phase approximation (RPA) plus… read more here.
Keywords: phase; argon crystal; plus renormalized; random phase ... See more keywords
Study of static and dynamic properties of even-even 14–24O and 38–54Ca in the frame of Random Phase Approximation (RPA) method with different Skyrme parameterizations
Sign Up to like & getrecommendations! Published in 2021 at "Physica Scripta"
DOI: 10.1088/1402-4896/abe9f0
Abstract: The static and dynamic nuclear properties for neutron rich oxygen and calcium isotopes have been calculated using the framework of the random phase approximation method with different Skyrme parameterizations namely; SyO-, SyO+, BSk17, SLy4, SLy5,… read more here.
Keywords: static dynamic; random phase; phase approximation; method different ... See more keywords
Erratum: Simple self-interaction correction to random-phase-approximation-like correlation energies [Phys. Rev. A 100, 022515 (2019)]
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.059902
Abstract: The random phase approximation (RPA) is exact for the exchange energy of a many-electron ground state, but RPA makes the correlation energy too negative by about 0.5 eV/electron. That large short-range error, which tends to… read more here.
Keywords: phase approximation; electron; random phase; energy ... See more keywords
Comparison of optical response from DFT random phase approximation and a low-energy effective model: Strained phosphorene
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.115144
Abstract: Mohammad Alidoust, Erlend E. Isachsen, Klaus Halterman, and Jaakko Akola 3 Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway Michelson Lab, Physics Division, Naval Air Warfare Center, China Lake, California 93555,… read more here.
Keywords: optical response; physics; response dft; random phase ... See more keywords