کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5497066 | 1399881 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sherrington-Kirkpatrick glassy-phase of random Josephson coupled Bose-Einstein condensates in wood-pile geometry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
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چکیده انگلیسی
We study a transition to a glassy phase of neutral atoms trapped in optical lattice, where the system is realized as the array of individual Bose-Einstein condensates of N elongated vertical and horizontal N rods in a wood-pile form coupled via the random Josephson tunneling. In this geometry every horizontal (vertical) rod of a condensate is linked to its vertical (horizontal) counterpart, so that the number of nearest neighbors z of a given rod in this system is z=N, implying that the system is fully connected. This together with randomness forms a prerequisite of the Sherrington-Kirkpatrick model for Nââ widely employed in the theory of spin glasses. For this arrangement we solve a model Hamiltonian of the Josephson array in the thermodynamic limit (Nââ) and calculate the critical temperature for the glassy phase-locking transition, caused by the Josephson tunneling of bosons in random environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 381, Issue 4, 30 January 2017, Pages 368-372
Journal: Physics Letters A - Volume 381, Issue 4, 30 January 2017, Pages 368-372
نویسندگان
T.K. KopeÄ, M.M. MusiaÅ,