New Variational Wave Function for Bose Liquids
- 29 May 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 28 (22), 1442-1445
- https://doi.org/10.1103/physrevlett.28.1442
Abstract
A new variational wave function is proposed for the ground state of Bose liquids. It consists of the optimized Jastrow function multiplied to exponentials of three-particle functions. The form of the latter is determined variationally in a formal analysis carried out for the weakly interacting Bose gas. Its appearance implies the summation of a new class of diagrams beginning with fourth-order terms in the interaction strength. Several calculations for realistic systems are proposed.Keywords
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