Permutation Sampling in Path Integral Monte Carlo
نویسندگان
چکیده
منابع مشابه
Permutation sampling in Path Integral Monte Carlo
Abstract A simple algorithm is described to sample permutations of identical particles in Path Integral Monte Carlo (PIMC) simulations of continuum many-body systems. The sampling strategy illustrated here is fairly general, and can be easily incorporated in any PIMC implementation based on the staging algorithm. Although it is similar in spirit to an existing prescription, it differs from it i...
متن کاملPermutation blocking path integral Monte Carlo approach to the uniform electron gas at finite temperature.
The uniform electron gas (UEG) at finite temperature is of high current interest due to its key relevance for many applications including dense plasmas and laser excited solids. In particular, density functional theory heavily relies on accurate thermodynamic data for the UEG. Until recently, the only existing first-principle results had been obtained for N = 33 electrons with restricted path i...
متن کاملMonte-Carlo Permutation Tests
The distribution of running time could be anything at all. We didnt even say whether it is continuous or discrete. Even so, the null hypothesis does induce a probability distribution on the test statistic without any other information. Specifically, it implies that the samples are indistinguishable and exchangeable. Our test statistic is a mean of 6 values (algorithm B running times) minus the ...
متن کاملOptimal Energy Estimation in Path-Integral Monte Carlo Simulations
We investigate the properties of two standard energy estimators used in path-integral Monte Carlo simulations. By disentangling the variance of the estimators and their autocorrelation times we analyse the dependence of the performance on the update algorithm and present a detailed comparison of refined update schemes such as multigrid and staging techniques. We show that a proper combination o...
متن کاملPath Integral Monte Carlo Simulations of Positronium in Argon
Positrons are a useful and non-destructive tool for probing materials; their current uses range from detecting changes in weapons materials [1] to determining whether a diamond is natural or synthetic [2]. Because the positron is the antiparticle of the electron, there are no positrons present in ordinary matter, and it is possible to closely determine what happens to positrons sent into a mate...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Low Temperature Physics
سال: 2005
ISSN: 0022-2291,1573-7357
DOI: 10.1007/s10909-005-7513-0