19 citations · 53 across the 7 of their papers we have counts for
7 papers
Correlation Dynamics of Yukawa-theory in 1+1 dimensions
S. Juchem, W. Cassing, J. M. Haeuser
Using the method of correlation dynamics we investigate the properties of a field-theory for fermions and scalar bosons coupled via a Yukawa interaction. Within this approach, whic…
Convergence properties of the equal-time connected Green function approach for temporal gauge SU(2)_{2+1} Yang-Mills theory
J. M. Hauser, W. Cassing, S. Leupold +1
The hierarchy of equations of motion for equal-time Green functions in temporal gauge SU(N) Yang-Mills theory is truncated using an expansion in terms of connected Green functions.…
Convergence properties of the cluster expansion for equal-time Green functions in scalar theories
A. Peter, W. Cassing, J. M. Hauser +1
We investigate the convergence properties of the cluster expansion of equal-time Green functions in scalar theories with quartic self-coupling in (0+1), (1+1), and (2+1) space-time…
Cluster Expansion Approach to the Effective Potential in -Theory
Andreas Peter, Joern M. Haeuser, Markus H. Thoma +1
We apply a truncated set of dynamical equations of motion for connected equal-time Green functions up to the 4-point level to the investigation of spontaneous ground state symmetry…
Connected Green function approach to ground state symmetry breaking in -theory
J. M. Haeuser, W. Cassing, A. Peter +1
Using the cluster expansions for n-point Green functions we derive a closed set of dynamical equations of motion for connected equal-time Green functions by neglecting all connecte…
Two-Body Correlations in Pionic Systems
J. M. Haeuser, W. Cassing, A. Peter
In close analogy to fermionic many-body theory the truncation of the bosonic BBGKY density matrix hierarchy on the two-body level leads to a coupled set of nonlinear equations of m…
Microscopic analysis of two-body correlations in light nuclei
Andreas Peter, Wolfgang Cassing, Joern M. Haeuser +1
Within a nonperturbative dynamical two-body approach - based on coupled equations of motion for the one-body density matrix and the two-body correlation function - we study the dis…