دراسة تخامد الصوت الصفري في السوائل الكوانتية (سائل فيرمي )بتابعية بارامترات لانداو من المرتبة ( ℓ = 0 ; 1)

Authors

  • محمود أحمد
  • نجاح قبلان

Abstract

تم في هذا البحث دراسة موجة الكثافة لسائل فيرمي بالاعتماد على فرضيات لانداو، كما تم حل المعادلة الحركية بتقريب زمن الاسترخاء عند تحقق الشرط اللاتصادمي ، وذلك بنشر تابع الكثافة الجسيمية من المرتبة ، إضافة لذلك حسبت أنماط الصوت الصفري ومعدل التخامد عند درجات الحرارة المنخفضة . نوقشت النتائج التي تم التوصل إليها وقورنت مع النتائج التجريبية والنظرية المتوفرة في هذا المجال. In this research, it has been studied the Fermi-Liquid density wave depending on Landau theory. The kinetic equation has been solved using relaxation time approximation at collision less condition ( ) . This is by expanding particle density function of order ( ) Plus, Zero sound modes have been calculated and attenuation rate at low temperatures ( ).The results have been discussed and compared to the set ones and the offered theory in this domain.

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Published

2017-06-21

How to Cite

1.
أحمد م, قبلان ن. دراسة تخامد الصوت الصفري في السوائل الكوانتية (سائل فيرمي )بتابعية بارامترات لانداو من المرتبة ( ℓ = 0 ; 1). TUJ-BA [Internet]. 2017Jun.21 [cited 2024Nov.24];38(6). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/2910

Issue

Vol. 38 No. 6 (2016): العلوم الاساسية

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