On the existence of condensed phases in low-dimensional systems |
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Authors: | YuE Lozovik AV Klyuchnik ON Nersesyan |
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Affiliation: | 2. >International Laboratory of High Magnetic Fields and Low Temperatures, Wroc?aw, Poland |
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Abstract: | It is shown that the threshold interaction constant (TIC) αD for the existence of a condensed phase increases with the dimension D of a Bose system (α3 < α2 < α1). TICs are evaluated exactly for a wide class of two-parameter potentials (the latter may approximate real physical interactions). The results are applied to spin-polarized systems. The possibility of an electric field induced liquid-gas transition is discussed. The TIC for N-particle clusters diminishes with N. |
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