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Two-body correlations in Bose condensates

O. Sorensen·D. V. Fedorov·A. S. Jensen·E. Nielsen
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Abstract

We formulate a method to study two-body correlations in a condensate of N identical bosons. We use the adiabatic hyperspheric approach and assume a Faddeev like decomposition of the wave function. We derive for a fixed hyperradius an integro-differential equation for the angular eigenvalue and wave function. We discuss properties of the solutions and illustrate with numerical results. The interaction energy is for N~20 five times smaller than that of the Gross-Pitaevskii equation.

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O. Sorensen, D. V. Fedorov, A. S. Jensen, E. Nielsen. 2001-10-03. Two-body correlations in Bose condensates. https://doi.org/10.1103/physreva.65.051601

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