Zobrazeno 1 - 10
of 43
pro vyhledávání: '"KOEHLER, H. S."'
Autor:
Köhler, H. S.
Linear density response functions are calculated for symmetric nuclear matter of normal density by time-evolving two-time Green's functions in real time. The feasability and convenience of this approach to this particular problem has been shown in pr
Externí odkaz:
http://arxiv.org/abs/1704.08428
Autor:
Köhler, H. S., Kwong, N. H.
Linear density response functions are calculated for symmetric nuclear matter of normal density by time-evolving two-time Green's functions in real time. Of particular interest is the effect of correlations. The system is therefore initially time-evo
Externí odkaz:
http://arxiv.org/abs/1601.05463
Autor:
Köhler, H. S.
Publikováno v:
Foundation of Physics 44(2014) p960
The energy-spectrum of two point-like particles interacting in a 3-D isotropic Harmonic Oscillator (H.O.) trap is related to the free scattering phase-shifts $\delta$ of the particles by a formula first published by Busch et al. It is here used to fi
Externí odkaz:
http://arxiv.org/abs/1601.03692
Autor:
Köhler, H. S.
This is a very short presentation regarding developments in the theory of nuclear many-body problems, as seen and experienced by the author during the past 60 years with particular emphasis on the contributions of Gerry Brown and his research-group.
Externí odkaz:
http://arxiv.org/abs/1405.0462
Autor:
Köhler, H. S.
This report concerns the energy of neutron-matter for densities below $0.15 fm^{-3}$ and temperatures at and below $10 MeV$. Separable NN-interactions are obtained by inverse scattering from the experimental phase-shifts with specified momentum cut-o
Externí odkaz:
http://arxiv.org/abs/0803.3048
Autor:
Köhler, H. S., Moszkowski, S. A.
The relation between nuclear saturation and NN-correlations is examined. Nucleons bound in a nucleus have a reduced effective mass due to the mean field. This results in off-energy-shell scatterings modifying the free-space NN-interaction by a disper
Externí odkaz:
http://arxiv.org/abs/nucl-th/0703093
Autor:
Köhler, H. S., Morawetz, K.
Publikováno v:
Phys.Rev. C64 (2001) 024613
The Kadanoff-Baym (KB) equations are solved numerically for infinite nuclear matter. In particular we calculate correlation energies and correlation times. Approximating the Green's functions in the KB collision kernel by the free Green's functions t
Externí odkaz:
http://arxiv.org/abs/nucl-th/0102059
Autor:
Morawetz, K., Köhler, H. S.
The formation of correlations due to collisions in an interacting nucleonic system is investigated shortly after a disturbance. Results from one-time kinetic equations are compared with the Kadanoff and Baym two-time equation with collisions included
Externí odkaz:
http://arxiv.org/abs/nucl-th/9807046
Autor:
Morawetz, K., Köhler, H. S.
Publikováno v:
Eur.Phys.J. A4 (1999) 291-305
The formation of correlations due to collisions in an interacting nucleonic system is investigated. Results from one-time kinetic equations are compared with the Kadanoff and Baym two-time equation with collisions included in Born approximation. A re
Externí odkaz:
http://arxiv.org/abs/nucl-th/9802082
The Nucleon Spectral Function at Finite Temperature and the Onset of Superfluidity in Nuclear Matter
Publikováno v:
Phys.Rev.C53:2181-2193,1996
Nucleon selfenergies and spectral functions are calculated at the saturation density of symmetric nuclear matter at finite temperatures. In particular, the behaviour of these quantities at temperatures above and close to the critical temperature for
Externí odkaz:
http://arxiv.org/abs/nucl-th/9511039