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- W1969389938 abstract "We continue the study of the integrodifferential equation proposed previously for the evaluation of the ground-state energy of an imperfect Bose gas. We apply it here to the one-dimensional delta-function gas where the exact result is known for all values of the coupling constant $ensuremath{gamma}$. The results are: (i) For small $ensuremath{gamma}$, the equation gives the correct first two terms in an asymptotic series; (ii) a numerical solution of the equation shows that the maximum relative error occurs for $ensuremath{gamma}=ensuremath{infty}$ in which case it is 19%; (iii) for $ensuremath{gamma}=ensuremath{infty}$ we are able to compare the exact two-particle distribution function with that given by the equation. The agreement is quite good." @default.
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- W1969389938 date "1964-04-20" @default.
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- W1969389938 title "Simplified Approach to the Ground-State Energy of an Imperfect Bose Gas. III. Application to the One-Dimensional Model" @default.
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- W1969389938 doi "https://doi.org/10.1103/physrev.134.a312" @default.
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