کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9727574 | 1480204 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The three-dimensional electron gas at the weak-correlation limit: how peculiarities of the momentum distribution and the static structure factor give rise to logarithmic non-analyticities in the kinetic and potential correlation energies
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
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چکیده انگلیسی
Partial summations of the ring diagrams for the momentum distribution n(k) and the static structure factor S(q) of the uniform three-dimensional electron gas at the weak-correlation limit are revisited. New light is shed on the thus-far overlooked properties of n(k) and S(q). In particular, it is elucidated how the peculiar behavior of n(k) near the Fermi surface and of S(q) near its q-space origin give rise to the logarithmic divergences in the kinetic and potential energies, respectively. Moreover, the trajectory of the inflexion point of S(q) and the jump discontinuity of Sâ³(q) at q=2 are analyzed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 356, Issues 2â4, 15 October 2005, Pages 598-608
Journal: Physica A: Statistical Mechanics and its Applications - Volume 356, Issues 2â4, 15 October 2005, Pages 598-608
نویسندگان
P. Ziesche, J. Cioslowski,