کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11001734 1032899 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Composite fermions and their pair states in a strongly-coupled Fermi liquid
ترجمه فارسی عنوان
فرمیون کامپوزیت و جفت آنها در یک مایع فرومی به شدت متصل می شوند
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی
Our goal is to understand the phenomena arising in optical lattice fermions at low temperature in an external magnetic field. Varying the field, the attraction between any two fermions can be made arbitrarily strong, where composite bosons form via so-called Feshbach resonances. By setting up strong-coupling equations for fermions, we find that in spatial dimension d>2 they couple to bosons which dress up fermions and lead to new massive composite fermions. At low enough temperature, we obtain the critical temperature at which composite bosons undergo the Bose-Einstein condensate (BEC), leading to BEC-dressing massive fermions. These form tightly bound pair states which are new bosonic quasi-particles producing a BEC-type condensate. A quantum critical point is found and the formation of condensates of complex quasi-particles is speculated over.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 936, November 2018, Pages 352-363
نویسندگان
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