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We present a simple linear model to estimate the basis set incompleteness errors (BSIE) of (vertex-corrected) $GW$ QP energies based on the kinetic energy of the corresponding orbital only. We parametrise the model for $G_0W_0$,…

化学物理 · 物理学 2025-12-01 Dario Baum , Lucas Visscher , Arno Förster

The newly developed "strongly constrained and appropriately normed" (SCAN) meta-generalized-gradient approximation (meta-GGA) can generally improve over the non-empirical Perdew-Burke-Ernzerhof (PBE) GGA not only for strong chemical…

材料科学 · 物理学 2016-10-19 Haowei Peng , Zeng-Hui Yang , Jianwei Sun , John P. Perdew

Water structure, measured by the height of the first peak in oxygen-oxygen radial distributions, is converged with respect to plane-wave basis energy cutoffs for ab initio molecular dynamics simulations, confirming the reliability of…

统计力学 · 物理学 2019-03-27 Susan B. Rempe , Thomas R. Mattsson , Kevin Leung

A Gaussian boson sampler (GBS) is a special-purpose quantum computer that can be practically realized at large scale in optics. Here we report on experiments in which we used a frequency-multiplexed GBS with $>400$ modes as the reservoir in…

If the weak equivalence principle (WEP) is broken, the measured values of the parametrized post-Newtonian parameter $\gamma$ from photons with left- and right-handed circular polarizations should differ slightly, leading to the arrival-time…

高能天体物理现象 · 物理学 2019-05-27 Jun-Jie Wei , Xue-Feng Wu

A method for performing variable-width (thawed) Gaussian wavepacket (GWP) variational dynamics on machine-learned potentials is presented. Instead of fitting the potential energy surface (PES), the anharmonic correction to the global…

化学物理 · 物理学 2024-12-17 Rami Gherib , Ilya G. Ryabinkin , Scott N. Genin

The performance of basis sets made of numerical atomic orbitals is explored in density-functional calculations of solids and molecules. With the aim of optimizing basis quality while maintaining strict localization of the orbitals, as…

材料科学 · 物理学 2009-11-07 Javier Junquera , Oscar Paz , Daniel Sanchez-Portal , Emilio Artacho

Gravitational-wave observations of quasicircular compact binary mergers imply complicated posterior measurements of their parameters. Though Gaussian approximations to the pertinent likelihoods have decades of history in the field, the…

天体物理仪器与方法 · 物理学 2022-12-08 Vera Delfavero , Richard O'Shaughnessy , Daniel Wysocki , Anjali Yelikar

We propose accurate computable error bounds for quantities of interest in plane-wave electronic structure calculations, in particular ground-state density matrices and energies, and interatomic forces. These bounds are based on an…

数值分析 · 数学 2022-10-20 Eric Cancès , Geneviève Dusson , Gaspard Kemlin , Antoine Levitt

We analyze a data set comprising 370 GW band structures composed of 61716 quasiparticle (QP) energies of two-dimensional (2D) materials spanning 14 crystal structures and 52 elements. The data results from PAW plane wave based one-shot…

材料科学 · 物理学 2021-01-05 Asbjørn Rasmussen , Thorsten Deilmann , Kristian S. Thygesen

We introduce highly local basis sets for electronic structure which are very efficient for correlation calculations near the complete basis set limit. Our approach is based on gausslets, recently introduced wavelet-like smooth orthogonal…

化学物理 · 物理学 2019-02-20 Steven R. White , E. Miles Stoudenmire

A simple scheme is described for introducing the correct cusps at nuclei into orbitals obtained from Gaussian basis set electronic structure calculations. The scheme is tested with all-electron variational quantum Monte Carlo (VMC) and…

计算物理 · 物理学 2008-01-18 A. Ma , M. D. Towler , N. D. Drummond , R. J. Needs

The weak equivalence principle (WEP) is the cornerstone of gravitational theories. At the local scale, WEP has been tested to high accuracy by various experiments. On the intergalactic distance scale, WEP could be tested by comparing the…

广义相对论与量子宇宙学 · 物理学 2020-10-26 Shu-Cheng Yang , Wen-Biao Han , Gang Wang

We test the performance of self-consistent GW and several representative implementations of vertex corrected G0W0 (G0W0{\Gamma}). These approaches are tested on benchmark data sets covering full valence spectra (first ionization potentials…

化学物理 · 物理学 2024-04-09 Ming Wen , Vibin Abraham , Gaurav Harsha , Avijit Shee , K. Birgitta Whaley , Dominika Zgid

We investigate the properties of a stochastic gravitational wave background produced by a first-order electroweak phase transition in the regime of extreme supercooling. We study a scenario whereby the percolation temperature that signifies…

高能物理 - 唯象学 · 物理学 2017-11-09 Archil Kobakhidze , Cyril Lagger , Adrian Manning , Jason Yue

Axion-like particles (ALPs), relatively light (pseudo-)scalars coupled to two gauge bosons, are a common feature of many extensions of the Standard Model. Up to now there has been a gap in the sensitivity to such particles in the MeV to 10…

高能物理 - 唯象学 · 物理学 2015-12-23 Joerg Jaeckel , Michael Spannowsky

The variation after projection (VAP) method is expected to be an efficient way of getting the optimized nuclear wave functions, so that they can be as close as possible to the exact shell model ones. However, we found there are two…

核理论 · 物理学 2023-06-21 Xiao Lu , Zhan-Jiang Lian , Xue-Wei Li , Zao-Chun Gao , Yong-Shou Chen

The $GW$ approximation to many-body perturbation theory is a reliable tool for describing charged electronic excitations, and it has been successfully applied to a wide range of extended systems for several decades using a plane-wave basis.…

材料科学 · 物理学 2019-10-23 Young-Moo Byun , Serdar Öğüt

Weak Equivalent Principle (WEP) can be tested through the parameterized post-Newtonian parameter $\gamma$, representing the space curvature produced by unit rest mass. The parameter $\gamma$ in turn has been constrained by comparing the…

广义相对论与量子宇宙学 · 物理学 2017-03-22 Yueyang Zhang , Biping Gong

We compare the strong part of the $\bar{\hbox{N}}\hbox{N}$ interaction obtained by the Nijmegen partial wave analysis and the results of some of the most popular $\bar{\hbox{N}}\hbox{N}$ optical potentials in configuration space. We have…

核理论 · 物理学 2023-09-27 Jaume Carbonell , Guillaume Hupin , Sławomir Wycech