Summary
The modified hypernetted-chain equation is used to study the ground state of Bose fluids in the Jastrow approximation. We test the equation for different forms of the pair interaction and of the Jastrow pseudopotential and in all cases the energy of 4He is given with an error not larger than 0.1 K at all densities. The effect of a triplet term in the wavefunction is also studied.
Riassunto
L’equazione integrale HNC modificata è applicata allo studio dello stato fondamentale di un fluido di Bose nell’approssimazione di Jastrow per diverse espressioni della interazione binaria e forme diverse della correlazione di Jastrow. In tutti i casi l’energia per 4He è calcolata con un errore non superiore a 0.1 K a tutte le densità. Si considera inoltre l’effetto di una correlazione a tre corpi nella funzione d’onda.
Резюме
модифицированное уравнение цепочки используется для исследования основного состояния Ъозе-жидкости в приближении Ястрова. Мы проверяем уравнение для различных форм парного взаимодействия и псевдопотенциала Ястрова. Во всех случаях приводится энергия 4He с погрешностью не более, чем 0.1 K для всех плотностей. Также исследуется влияине триплетного члена на волновую функцию.
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Oddi, L., Reatto, L. Modified hypernetted-chain equation for the ground state of Bose fluids. Nouv Cim D 11, 1679–1691 (1989). https://doi.org/10.1007/BF02459115
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DOI: https://doi.org/10.1007/BF02459115