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VOLUME 57 (1993) | ISSUE 8 |
PAGE 458
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Two-dimensional Bose gas at low density
Ovchinnikov A. A.
A new method to describe the interacting Bose gas at zero temperature is proposed. For a three-dimensional system the correction in density to the ground-state energy is reproduced. For the dilute two-dimensional Bose gas the ground-state energy in the leading order in the parameter |lna2p| -1, where a is the scattering length, is obtained.
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