搜索结果: 31-45 共查到“理学 Accuracy”相关记录92条 . 查询时间(0.046 秒)
Modification of the Gay-Berne potential for improved accuracy and speed
Modification of the Gay-Berne potential accuracy and speed Chemical Physics
2012/5/29
A modification of the Gay-Berne potential is proposed which is about 10% to 20% more speed efficient (that is, the original potential runs 15% to 25% slower, depending on architecture) and statistical...
The Electron Capture Decay of 163-Ho to Measure the Electron Neutrino Mass with sub-eV Accuracy and Beyond
electron neutrino mass electron capture decay 163Ho
2012/2/24
We have investigated the possibility of measuring the electron neutrino mass with sub-eV sensitivity by studying the electron capture decay of 163-Ho with cryogenic microcalorimeters. In this paper we...
Accuracy of second order perturbation theory in the polaron and variational polaron frames
second order perturbation theory in the polaron variational polaron frames
2014/9/24
In the study of open quantum systems, the polaron transformation has recently attracted a renewed interest as it offers the possibility to explore the strong system-bath coupling regime. Despite this ...
Accuracy of empirical projections of high-dimensional Gaussian matrices
high-dimensional Gaussian matrices Probability
2011/9/22
Abstract: Let $epsilon\in\R^{M\times M}$ be a centered Gaussian matrix whose entries are independent with variance $\sigma^2$. The accuracy of reduced-rank projections of $X=C+epsilon$ with a determin...
A study of the uniform accuracy of univariate thin plate spline interpolation
plate spline interpolation Numerical Analysis
2011/9/16
Abstract: The usual power function error estimates do not capture the true order of uniform accuracy for thin plate spline interpolation to smooth data functions in one variable. In this paper we prop...
Improved accuracy of the NPL-CsF2 primary frequency standard: evaluation of distributed cavity phase and microwave lensing frequency shifts
NPL-CsF2 primary frequency standard cavity phase microwave lensing frequency shifts
2011/8/17
Abstract: We evaluate the distributed cavity phase and microwave lensing frequency shifts, which were the two largest sources of uncertainty for the NPL-CsF2 cesium fountain clock. We report measureme...
Accuracy of transfer matrix approaches for solving the effective mass Schr鰀inger equation
matrix approaches mass Schr鰀inger equation
2011/9/14
2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for adv...
A Computational and Theoretical Investigation of the Accuracy of Quasicontinuum Methods
quasicontinuum error analysis atomistic-to-continuum multiphysics.
2011/3/1
We give computational results to study the accuracy of several quasicontinuum methods
for two benchmark problems — the stability of a Lomer dislocation pair under shear and the
stability of a lattic...
Tracing light propagation to the intrinsic accuracy of space-time geometry
relativity gravitation space-time geometry weak field approximations light propagation
2011/3/4
Advancement in astronomical observations and technical instrumentation requires coding light
propagation at high level of precision; this could open a new detection window of many subtle relativistic...
Flood frequency analysis (FFA) entails the estimation of the upper tail of a probability density function (PDF) of annual peak flows obtained from either the annual maximum series or partial duration ...
On the Accuracy of Weak Lensing Cluster Mass Reconstructions
galaxies clusters general— gravitational lensing
2010/11/11
We study the bias and scatter in mass measurements of galaxy clusters resulting from fitting sphericallysymmetric Navarro, Frenk & White (NFW) model to the reduced tangential shear profile measured in...
Effects of large-scale structure on the accuracy of weak lensing mass measurements
cosmology observations dark matter large-scale structure of Uni-verse galaxies clusters
2010/11/10
Weak gravitational lensing has become an important method to determine the masses of galaxy clusters. The intrinsic shapes of the galaxies are a dominant source of uncertainty, but there are other lim...
We consider open quantum systems with dynamics described by a stationary master equations that has a perturbative expansion in the system-environment interaction. We show that, contrary to intuition,...
Gaussian flexibility with Fourier accuracy: the periodic von Neumann basis set
Gaussian flexibility Fourier accuracy Neumann basis set
2010/11/5
We propose a new method for solving quantum mechanical problems, which combines the flexibility of Gaussian basis set methods with the numerical accuracy of the Fourier method. The method is based on ...
Exact Pointer Properties for Quantum System Projector Measurements with Application to Weak Measurements and Their Accuracy
Exact Pointer Properties Quantum System Projector Measurements Application Measurements Accuracy
2010/11/5
Exact pointer states are obtained for projection operator measurements performed upon pre-selected (PS) and upon pre- and post-selected (PPS) quantum systems. These states are used to provide simple e...