Nuclear density functional theory with a semi-contact 3-body interaction
Lacroix, D., & Bennaceur, K. (2016). Nuclear density functional theory with a semi-contact 3-body interaction. In A. Andreev, N. Arsenyev, S. Ershov, V. Sargsyan, & A. Vdovin (Eds.), NSRT15 : International Conference on Nuclear Structure and Related Topics. EDP Sciences. EPJ Web of Conferences, 107. https://doi.org/10.1051/epjconf/201610702002
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Theories combining nuclear density functional approach (DFT) and effects beyond the independent
particle/quasi-particle limit have attracted much attention recently. In particular, such theories, generically referred
as "beyond mean-field" (BMF) seem unavoidable to account for both single-particle effects and complex
quantum internal phenomena in nuclear finite many-body nuclear systems. It has been realized recently that
BMF theories might lead to specific difficulties when applied within the nuclear DFT context. An example is
the appearance of divergences in configuration mixing approaches. A short summary of the difficulties is given
here. One source of problem is the use of energy functional of non-integer powers of the density. We show
that such dependence can be mimicked by a suitable choice of a three-body interaction. Application on infinite
nuclear matter in various spin-isospin channels will be given.
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Except where otherwise noted, this item's license is described as © Owned by the authors, published by EDP Sciences, 2016. This is an open access article distrubuted under the terms of the Creative Commons Attribution License 4.0.
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