- th / 0 10 90 20 v 1 7 S ep 2 00 1 Numerical study of the density of states for the bag model
نویسندگان
چکیده
The density of states for an extended MIT bag model is studied numerically by using a parameterized smooth representation which provides the best fit to the numerical data. It is found that the mass dependence of the surface term in the density of states agrees with that derived from multi-reflection theory calculation. The mass dependence of the curvature term in the density of states is extracted for finite values of the quark mass. The scaling properties of the data, which is assumed in the parameterization, are studied. The difference between the parameterized smooth representation determined by a best fit and the results derived from direct smoothing of the numerical data are discussed. The fluctuations in the density of states are also discussed. We provide a smooth representation of the density of states of a spherical cavity for non-relativistic particles.
منابع مشابه
ar X iv : h ep - l at / 0 20 90 72 v 1 5 S ep 2 00 2 1 Four – loop logarithms in 3 d gauge + Higgs theory ∗
We discuss the logarithmic contributions to the vacuum energy density of the three-dimensional SU(3) + adjoint Higgs theory in its symmetric phase, and relate them to numerical Monte Carlo simulations. We also comment on the implications of these results for perturbative and non-perturbative determinations of the pressure of finite-temperature QCD.
متن کاملuc l - th / 0 10 90 21 v 1 7 S ep 2 00 1 Nucleons and Isobars at finite density ( ρ ) and temperature ( T )
The importance of studying matter at high ρ increases as more astrophysical data becomes available from recently launched spacecrafts. The importance of high T studies derives from heavy ion data. In this paper we set up a formalism to study the nucleons and isobars with long and short range potentials non-pertubatively, bosonizing and expanding semi-classically the Feyman integrals up to one l...
متن کاملar X iv : h ep - l at / 0 11 20 46 v 1 2 1 D ec 2 00 1 Numerical simulation of high quark densities in QCD with two colours
The DESY-Swansea Collaboration performed numerical simulations investigating SU(2) lattice gauge theory at non-zero chemical potential with one staggered quark flavour in the adjoint representation. This lattice model has similar features to QCD itself and its study gives interesting insights into some open problems of high density quark matter. In particular the rôle of the " sign problem " ca...
متن کاملar X iv : h ep - l at / 0 11 00 90 v 1 1 5 O ct 2 00 1 Diquark condensation in dense SU ( 2 ) matter
We report on a lattice study of two-color QCD with adjoint staggered fermions at high density. We find that the model has no early onset and we report on results for diquark condensation, from simulations with and without a diquark source term.
متن کاملar X iv : m at h - ph / 0 40 90 07 v 1 3 S ep 2 00 4 Continuity with respect to Disorder of the Integrated Density of States
We prove that the integrated density of states (IDS) associated to a random Schrödinger operator is locally uniformly Hölder continuous as a function of the disorder parameter λ. In particular, we obtain convergence of the IDS, as λ → 0, to the IDS for the unperturbed operator at all energies for which the IDS for the unperturbed operator is continuous in energy.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2001