کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9727733 | 1480208 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anharmonic corrections to the electrostatic energy of a Coulomb crystal
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Model calculations of the electrostatic energy of body-centered-cubic and face-centered-cubic Coulomb crystals are presented. The electrostatic energy is calculated using a pair distribution function of ions in the harmonic approximation. This distribution function is shown to be in a good agreement with the function derived by the Monte Carlo method in the high-temperature classical limit (T⪢âÏp, Ïp being the ion plasma frequency). It is also in a good agreement with the distribution function obtained by the path integral Monte Carlo method in the low-temperature quantum limit (T⪡âÏp). First- and second-order anharmonic corrections to the electrostatic energy are analyzed in a wide temperature range, from the high-temperature classical regime to the low-temperature quantum regime. For typical conditions in the envelopes of neutron stars and the cores of white dwarfs the anharmonic corrections to the electrostatic energy do not exceed a few percent of the electrostatic energy of harmonic lattice.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 352, Issues 2â4, 15 July 2005, Pages 397-408
Journal: Physica A: Statistical Mechanics and its Applications - Volume 352, Issues 2â4, 15 July 2005, Pages 397-408
نویسندگان
A.I. Chugunov, D.A. Baiko,