Matches in SemOpenAlex for { <https://semopenalex.org/work/W4366457069> ?p ?o ?g. }
Showing items 1 to 49 of
49
with 100 items per page.
- W4366457069 abstract "We examine in detail two alternative descriptions of a system of $alpha$ particles interacting via local interactions of different character, highlighting the fact that a faithful microscopic description of such systems demands a consistent treatment of both short- and long-range correlations. In preparation, we examine four different versions of modern microscopic many-body theory and conclude by emphasizing that these approaches, although {it a priori} very different, actually lead to the same equations for their efficient application. The only quantity that depends on the formulation of many-body theory chosen is an {it irreducible} interaction correction. In the language of Green's functions and Feynman diagrams, it is the set of both particle-particle and particle-hole irreducible diagrams, and in variational Jastrow-Feenberg theory it is determined by {it multipartite correlations} and {it elementary diagrams}. We apply these theoretical methods to the calculation of the energetics, structure, thermodynamics, and dynamics of $alpha$ matter, as well as its condensate fraction. In dimensionless units, $alpha$ matter appears to be remarkably similar to the much-studied $^4$He quantum fluid, its low-temperature properties now basically solved in the Jastrow-Feenberg framework. Accordingly, one can have confidence in the results of application of the same procedure to $alpha$ matter. Even so, closer examination reveals significant differences between the physics of the two systems. Within an infinite nuclear medium, alpha matter is subject to a spinoidal instability. Extended mixtures of nucleons and alpha particles are yet to be given rigorous consideration in a corresponding theoretical framework." @default.
- W4366457069 created "2023-04-22" @default.
- W4366457069 creator A5023635949 @default.
- W4366457069 creator A5064818302 @default.
- W4366457069 date "2023-04-17" @default.
- W4366457069 modified "2023-09-30" @default.
- W4366457069 title "Alpha matter revisited" @default.
- W4366457069 doi "https://doi.org/10.48550/arxiv.2304.08543" @default.
- W4366457069 hasPublicationYear "2023" @default.
- W4366457069 type Work @default.
- W4366457069 citedByCount "0" @default.
- W4366457069 crossrefType "posted-content" @default.
- W4366457069 hasAuthorship W4366457069A5023635949 @default.
- W4366457069 hasAuthorship W4366457069A5064818302 @default.
- W4366457069 hasBestOaLocation W43664570691 @default.
- W4366457069 hasConcept C109214941 @default.
- W4366457069 hasConcept C121332964 @default.
- W4366457069 hasConcept C121864883 @default.
- W4366457069 hasConcept C165410206 @default.
- W4366457069 hasConcept C172695262 @default.
- W4366457069 hasConcept C24872484 @default.
- W4366457069 hasConcept C33332235 @default.
- W4366457069 hasConcept C62520636 @default.
- W4366457069 hasConcept C65574998 @default.
- W4366457069 hasConceptScore W4366457069C109214941 @default.
- W4366457069 hasConceptScore W4366457069C121332964 @default.
- W4366457069 hasConceptScore W4366457069C121864883 @default.
- W4366457069 hasConceptScore W4366457069C165410206 @default.
- W4366457069 hasConceptScore W4366457069C172695262 @default.
- W4366457069 hasConceptScore W4366457069C24872484 @default.
- W4366457069 hasConceptScore W4366457069C33332235 @default.
- W4366457069 hasConceptScore W4366457069C62520636 @default.
- W4366457069 hasConceptScore W4366457069C65574998 @default.
- W4366457069 hasLocation W43664570691 @default.
- W4366457069 hasOpenAccess W4366457069 @default.
- W4366457069 hasPrimaryLocation W43664570691 @default.
- W4366457069 hasRelatedWork W1987067362 @default.
- W4366457069 hasRelatedWork W1997301443 @default.
- W4366457069 hasRelatedWork W2011246686 @default.
- W4366457069 hasRelatedWork W2013427216 @default.
- W4366457069 hasRelatedWork W2383090061 @default.
- W4366457069 hasRelatedWork W2768280615 @default.
- W4366457069 hasRelatedWork W3104438683 @default.
- W4366457069 hasRelatedWork W3104711689 @default.
- W4366457069 hasRelatedWork W3124581092 @default.
- W4366457069 hasRelatedWork W3207878994 @default.
- W4366457069 isParatext "false" @default.
- W4366457069 isRetracted "false" @default.
- W4366457069 workType "article" @default.