Do bosons always condense?
نویسندگان
چکیده
منابع مشابه
Do attractive bosons condense?
Motivated by experiments on bose atoms in traps which have attractive interactions (e.g. 7Li), we consider two models which may be solved exactly. We construct the ground states subject to the constraint that the system is rotating with angular momentum proportional to the number of atoms. In a conventional system this would lead to quantised vortices; here, for attractive interactions, we find...
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Using Perron-Frobenius theorem, we prove that the results by Wilkin, Gunn and Smith [1] for the ground states of rotating N Bose atoms in a harmonic atomic trap with frequency ω interacting via attractive δ2(r) forces, are valid for a broad class of predominantly attractive interactions V (r), not necessarily attractive for any r. The sufficient condition for the interaction is that all the two...
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ژورنال
عنوان ژورنال: National Science Review
سال: 2020
ISSN: 2095-5138,2053-714X
DOI: 10.1093/nsr/nwaa219