M
Manfred L. Ristig
Researcher at University of Cologne
Publications - 82
Citations - 932
Manfred L. Ristig is an academic researcher from University of Cologne. The author has contributed to research in topics: Wave function & Density matrix. The author has an hindex of 17, co-authored 82 publications receiving 918 citations.
Papers
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Journal ArticleDOI
Long-range Jastrow correlations
E. Krotscheck,Manfred L. Ristig +1 more
TL;DR: In this paper, a promising many-body method to evaluate the Fermi equation of state for dense neutron matter and liquid helium is developed. But the authors admit the presence of short-and long-range correlations.
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Density matrix of quantum fluids
Manfred L. Ristig,John W. Clark +1 more
TL;DR: In this article, an elaborate cluster analysis of the single-particle occupation probability and associated one-body density matrix was performed for a Fermi system described by a Jastrow wave function, and it was conjectured and demonstrated to convincingly high cluster order, that ${n}_{\stackrel{^}{q}}$ may be written as $n[N(q)+{N}_{1}(q)]$, where $n$ is a strength factor independent of wave number $q$ and the quantities $n(q)$ and ${
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Hypernetted-chain approximation for dense Fermi fluids
E. Krotscheck,Manfred L. Ristig +1 more
TL;DR: In this paper, the ground state of a Fermi fluid is approximated by a Jastrow-ansatz, and the factorized Iwamoto-Yamada expansion of the radial distribution function is suitably rearranged.
Journal ArticleDOI
Tensor correlations in nuclear matter.
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Studies in the method of correlated basis functions
TL;DR: In this article, a perturbation theory is described which provides a means of systematic solution of the matrix eigenvalue problem in a non-orthogonal correlated basis and general cluster-expansion algorithms are offered for evaluation of the required matrix elements in the correlated representation.