Stability of the (2+2)-fermionic system with zero-range interaction

We introduce a 3D model, and we study its stability, consisting of two distinct pairs of identical fermions coupled with a two-body interaction between fermions of different species, whose effective range is essentially zero (a so called (2+2)-fermionic system with zero-range interaction). The inter...

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Veröffentlicht in:	Journal of physics. A, Mathematical and theoretical Mathematical and theoretical, 2016-03, Vol.49 (10), p.105301
Hauptverfasser:	Michelangeli, Alessandro, Pfeiffer, Paul
Format:	Artikel
Sprache:	eng
Schlagworte:	Bethe-Peierls contact condition Contact Energy of formation Fermions Krein-Višik-Birman theory of self-adjoint extensions Mathematical analysis Mathematical models numerical minimization by basis truncation point interactions Quadratic forms Stability Ter-Martirosyan-Skornyakov operators Three dimensional models unitary gases
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