کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8204824 1530565 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spin-orbit-coupled BEC in a double-well potential: Quantum energy spectrum and flat band
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Spin-orbit-coupled BEC in a double-well potential: Quantum energy spectrum and flat band
چکیده انگلیسی
Spin-orbit-coupled Bose-Einstein condensates (BECs) provide a powerful platform for studies on physical problems in various fields. Here we study the energy spectrum of a tunable spin-orbit-coupled BEC in a double-well potential with adjustable Raman laser intensity. We find in the single-particle spectrum there is a highly degenerate flat band in the ground state of the BEC, which remains stable against changes of the Raman strength. Many-body interactions between atoms remove this high degeneracy. Analytical results for particular cases are obtained by using the perturbation theory, which are in good agreement with the numerical results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 379, Issues 30–31, 4 September 2015, Pages 1762-1765
نویسندگان
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