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Low-temperature behaviour of a high-density Bose model

Поведение при низких температурах Бозе-модели с высокой плотностью

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Il Nuovo Cimento A (1965-1970)

Summary

The low-temperature thermodynamic properties of a high-density Bose gas with strong attraction between the particles are obtained within the Bogolubov approximation. An approach is used which also gives an interesting connection between the Bogoliubov approximation and the spectral-density method.

Riassunto

Adoperando l’approssimazione di Bogoliubov, si studiano le proprietà termodinamiche, nella regione di basse temperature, di un gas di Bose ad alta densità con attrazione forte tra le particelle. Noi usiamo un procedimento che fornisce anche un’interessante connessione tra la suddetta approssimazione e il metodo della densità spettrale.

Резюме

В рамках приближения Боголюбова исследуются термодинамические свойства при низких температурах Бозе-газа с высокой плотностью и с сильным притяжением между частицами. Используется подход, который дает интересную связь между приближением Боголюбова и методом спектральной плотности.

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Campana, L.S., D’Auria, A.C., De Cesare, L. et al. Low-temperature behaviour of a high-density Bose model. Nuov Cim A 52, 141–150 (1979). https://doi.org/10.1007/BF02902041

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  • DOI: https://doi.org/10.1007/BF02902041

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