Multi-fermion systems with contact theories

We address the question of minimal requirements for the existence of quantum bound states. In particular, we demonstrate that a few-body system with zero-range momentum-independent two-body interactions is unstable against decay into clusters, if mixed-symmetry of its wave function is enforced. We c...

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Bibliographic Details
Main Authors: M. Schäfer, L. Contessi, J. Kirscher, J. Mareš
Format: Article
Language:English
Published: Elsevier 2021-05-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269321001349