Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Markum, Harald"'
This article is the written version of a talk delivered at the Workshop on Nonlinear Dynamics and Fundamental Interactions in Tashkent and starts with an introduction into quantum chaos and its relationship to classical chaos. The Bohigas-Giannoni-Sc
Externí odkaz:
http://arxiv.org/abs/hep-lat/0505011
Publikováno v:
Nucl.Phys.Proc.Suppl.140:568-570,2005
We investigate the eigenvalue spectrum of the staggered Dirac matrix in two color QCD at finite chemical potential. The profiles of complex eigenvalues close to the origin are compared to a complex generalization of the chiral Gaussian Symplectic Ens
Externí odkaz:
http://arxiv.org/abs/hep-lat/0409045
We analyze the Lyapunov exponents of U(1) gauge fields across the phase transition from the confinement to the Coulomb phase on the lattice which are initialized by quantum Monte Carlo simulations. We observe all features of a strange attractor with
Externí odkaz:
http://arxiv.org/abs/hep-lat/0402014
Publikováno v:
Prog.Theor.Phys.Suppl.153:295-300,2004
We investigate the distribution of the spacings of adjacent eigenvalues of the lattice Dirac operator. At zero chemical potential $\mu$, the nearest-neighbor spacing distribution $P(s)$ follows the Wigner surmise of random matrix theory both in the c
Externí odkaz:
http://arxiv.org/abs/hep-lat/0402015
U(1) gauge fields are decomposed into a monopole and photon part across the phase transition from the confinement to the Coulomb phase. We analyze the leading Lyapunov exponents of such gauge field configurations on the lattice which are initialized
Externí odkaz:
http://arxiv.org/abs/hep-lat/0402013
Publikováno v:
Nucl.Phys.Proc.Suppl.129:895-897,2004
We check the eigenvalue spectrum of the $\Phi^{4}_{1+1}$ Hamiltonian against Poisson or Wigner behavior predicted from random matrix theory. We discuss random matrix theory as a tool to discriminate the validity of a model Hamiltonian compared to an
Externí odkaz:
http://arxiv.org/abs/hep-lat/0309095
Autor:
Markum, Harald, Pullirsch, Rainer
An investigation of classical chaos and quantum chaos in gauge fields and fermion fields, respectively, is presented for (quantum) electrodynamics. We analyze the leading Lyapunov exponents of U(1) gauge field configurations on a $12^3$ lattice which
Externí odkaz:
http://arxiv.org/abs/nlin/0303057
Autor:
Fiebig, H. Rudolf, Markum, Harald
The effective residual interaction for a system of hadrons has a long tradition in theoretical physics. It has been mostly addressed in terms of boson exchange models. The aim of this review is to describe approaches based on lattice field theory and
Externí odkaz:
http://arxiv.org/abs/hep-lat/0212037
Publikováno v:
Nucl.Phys.Proc.Suppl.121:307-311,2003
U(1) gauge fields are decomposed into a monopole and photon part across the phase transition from the confinement to the Coulomb phase. We analyze the leading Lyapunov exponents of such gauge field configurations on the lattice which are initialized
Externí odkaz:
http://arxiv.org/abs/hep-lat/0210020
Publikováno v:
Nucl.Phys.Proc.Suppl.119:757-759,2003
U(1) gauge fields are decomposed into a monopole and photon part across the phase transition from the confinement to the Coulomb phase. We analyze the leading Lyapunov exponents of such gauge field configurations on the lattice which are initialized
Externí odkaz:
http://arxiv.org/abs/hep-lat/0209039