PERUMUSAN FUNGSI GREEN SISTEM OSILATOR HARMONIK DENGAN MENGGUNAKAN METODE INTEGRAL LINTASAN (PATH INTEGRAL)
ABSTRACT: The path integral is
a method that often used in the quantum problemscalculation. For example; the
calculation of quantum system energy that has complex potential form. The
method gives more easily than perturbation method. The method is also used to
derive Green function, which usually used Fourier transformation. The Green
function has widely application in quantum physics, since it used to compute
solution of inhomogen differential equation as Schrodinger equation. In the
particle physics, the Green function used aspropagator in Feynman’s diagram.
Considering the importance of Green function, and the powerfull of path
integral method, in the paper, the method used to derive the formula of Green
function for quantum harmonic oscillator system. The system has widely
application to give more information of physical phenomena, for example, the
atomic vibration in solid state. The result was also comparedwith Fourier
transformation method and both give the same result as hoped.
Penulis: Sutisna
Kode Jurnal: jpfisikadd090061
