32 research outputs found
Complex Langevin dynamics for dynamical QCD at nonzero chemical potential: a comparison with multi-parameter reweighting
We study lattice QCD at non-vanishing chemical potential using the complex
Langevin equation. We compare the results with multi-parameter reweighting both
from and phase quenched ensembles. We find a good agreement for lattice
spacings below 0.15 fm. On coarser lattices the complex Langevin
approach breaks down. Four flavors of staggered fermions are used on
and 8 lattices. For one ensemble we also use two flavors to investigate the
effects of rooting.Comment: 10 pages, 11 figures, PRD version, minor change
Getting even with CLE
In the landscape of approaches toward the simulation of Lattice Models with complex action the Complex Langevin (CL) appears as a straightforward method with a simple, well defined setup. Its applicability, however, is controlled by certain specific conditions which are not always satisfied. We here discuss the procedures to meet these conditions and the estimation of systematic errors and present some actual achievements. 35th International Symposium on Lattice Field Theor
Introductory lectures on lattice QCD at nonzero baryon number
These lecture notes contain an elementary introduction to lattice QCD at nonzero chemical potential. Topics discussed include chemical potential in the continuum and on the lattice; the sign, overlap and Silver Blaze problems; the phase boundary at small chemical potential; imaginary chemical potential; and complex Langevin dynamics. An incomplete overview of other approaches is presented as well. These lectures are meant for postgraduate students and postdocs with an interest in extreme QCD. A basic knowledge of lattice QCD is assumed but not essential. Some exercises are included at the end
Tenure, gender and household structure
Starting with a review of recent literature on gender and housing, this paper goes on to develop a new theory of household structure, in which concepts of gender and generation play a key role. The utility of this theory is then demonstrated in the analysis of data from a survey of households in the City of Salford
Women losing out Access to housing in Britain today
3.95Available from British Library Document Supply Centre- DSC:91/00001(Women) / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo