کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1857417 1529873 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Decomposition of the total momentum in a linear dielectric into field and matter components
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Decomposition of the total momentum in a linear dielectric into field and matter components
چکیده انگلیسی


• The total momentum in a dielectric is identified by conservation principles.
• The total momentum in a dielectric cannot be decomposed into field and matter parts.
• A component of momentum in a dielectric is due to motion of the polarization field.

The long-standing resolution of the Abraham–Minkowski electromagnetic momentum controversy is predicated on a decomposition of the total momentum of a closed continuum electrodynamic system into separate field and matter components. Using a microscopic model of a simple linear dielectric, we derive Lagrangian equations of motion for the electric dipoles and show that the dielectric can be treated as a collection of stationary simple harmonic oscillators that are driven by the electric field and produce a polarization field in response. The macroscopic energy and momentum are defined in terms of the electric, magnetic, and polarization fields that travel through the dielectric together as a pulse of electromagnetic radiation. We conclude that both the macroscopic total energy and the macroscopic total momentum are entirely electromagnetic in nature for a simple linear dielectric in the absence of significant reflections.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 338, November 2013, Pages 97–106
نویسندگان
,