PENGKAJIAN OSILATOR HARMONIK SECARA KUANTUM DENGAN SIMULASI MENGGUNAKAN BAHASAPEMROGRAMAN DELPHI 7.0

Aditiya

Published Jan 1, 2009• 0 citations

Abstract

The harmonic oscillator has been described numerically using Delphi 7.0 programming language. It’s wave function and probabilistic density expressedby hermitte polynomial are visualized graphically for n = 0 until n = 10. The graph can be used to describethe behaviorof particles that moves under the influence of periodic force (oscillation). In addition tothesolution using polynomial hermitte, the wave function also can be derived using operator method (algebraic) which is expressed asfirst order differential expression and solved using Maple 9.5 programming. Keywords: harmonic oscillator, operator method, hermitte polynomial

Related papers

Visualisasi osilator harmonik kuantum dengan polinomial hermitte menggunakan simulasi pemrograman matlab

Endah Rusmini, Firda Azizatul Fauziah, Nieky Frantika Arianto +4 more

Harmonic oscillator is a part of quantum mechanics which is commonly used as an approximation model to solve cases in physics that are considered complicated. The harmonic oscillator has a function as an energy source, namely as a description of anatomic particles. This research focuses on solving the Schrödinger equation for particles under the influence of a harmonic oscillator potential. This study aims to visualize the wave function and particle probability under the influence of a harmonic oscillator potential. The wave function is obtained by solving the Schrödinger equation. The Schrödinger equation can be solved using a second order differential equation that satisfies the solution of the hermite polynomial. The nature of the first hermite polynomial is the relationship between polynomials that have adjacent orders, the second is the derivative of hermite polynomials and the third is the orthogonality of hermite polynomials. The solution to the Schrödinger equation is in the form of a wave function which is then developed to determine the probability of particles in a harmonic oscillator which is then visualized using Matlab programming. The wave function and particle probability visualization is obtained by plotting the wave function and probability using Matlab programming. Osilator harmonik menjadi salah satu bagian dari mekanika kuantum yang biasa digunakan sebagai model pendekatan untuk menyelesaikan kasus-kasus dalam fisika yang dianggap rumit. Osilator harmonik memiliki fungsi dalam sumber energi yaitu sebagai pendeskripsi partikel anatomik. Penelitian ini memfokuskan bahasan mengenai penyelesaian persamaan Schrödinger untuk partikel dibawah pengaruh potensial osilator harmonik. Penelitian ini bertujuan memvisualisasikan fungsi gelombang dan probabilitas partikel dalam pengaruh potensial osilator harmonik. Fungsi gelombang diperoleh dengan penyelesaian persamaan Schrödinger. Persamaan Schrödinger tersebut dapat diselesaikan menggunakan penyelesaian persamaan diferensial orde 2 yang memenuhi solusi polinomial hermitte. Sifat dari polinom hermitte yang pertama adalah hubungan antar polinom yang memiliki orde berdekatan, kedua adalah derivatif polinom hermitte dan ketiga adalah keortogonalan polinom hermitte. Penyelesaian persamaan Schrödinger tersebut berupa fungsi gelombang yang kemudian dikembangkan untuk mengetahui probabilitas pada partikel dalam osilator harmonik yang kemudian dilakukan visualisasi menggunakan pemrograman Matlab. Visualisasi fungsi gelombang dan probabilitas partikel diperoleh dengan melakukan ploting terhadap fungsi gelombang dan probabilitas menggunakan pemrograman Matlab.

Jurnal MIPA dan PembelajarannyaMar 18, 20220 citations

Analisis Energi Osilator Harmonik Menggunakan Metode Path Integral Hypergeometry dan Operator

Fuzi Marati Sholihah, Suparmi Suparmi, Viska Inda Variani

Solution of the harmonic oscillator equation has a goal to get the energy levels of particles moving harmonic. The energy spectrums of one dimensional harmonic oscillator are analyzed by 3 methods: path integral, hypergeometry and operator. Analysis of the energy spectrum by path integral method is examined with Schrodinger equation. Analysis of the energy spectrum by operator method is examined by Hamiltonian in operator. Analysis of harmonic oscillator energy by 3 methods: path integral, hypergeometry and operator are getting same results 𝐸 = ℏ𝜔 (𝑛 + 1 2)

INDONESIAN JOURNAL OF APPLIED PHYSICSMay 22, 20162 citations

Algebraic Approach to Wave Function of Harmonic Oscillator and Recursion Relations of Hermite Polynomial

HU Xian-quan

Harmonic oscillator model,the physical method of which enjoys wide application in other related courses is the simplest but the most important model in quantum mechanics.On one hand,profound understanding of harmonic oscillator model through various ways is crucial to understand the essence of quantum mechanics and research into micro physical models by means of quantum mechanics;on the other hand,the application of algebraic approach to solve the eigenvalues and wave function of mechanics is the main means to solve the actual problems in quantum mechanics.This paper will take harmonic oscillator as an example,and apply algebraic approach to firstly present wave function of one-dimensional harmonic oscillator,and then multi-dimensional harmonic oscillator,and also combine corresponding commutator relations of operator to present Hermite polynomials and its recursion relations,which will avoid the process of using series to solve the equation of Heimite.Meanwhile,it will improve some shortcomings revealed in the same paper.

Chongqing Shifan Daxue xuebao. Ziran kexue banJan 1, 20090 citations

Perumusan Fungsi Green Sistem Osilator Harmonik dengan Menggunakan Metode Integral Lintasan (Path Integral)

Sutisna Sutisna

The path integral is a method that often used in the quantum problems calculation. 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 as propagator 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 compared with Fourier transformation method and both give the same result as hoped.

Mar 1, 20170 citations

One-particle Quantum Harmonic Oscillator

Caio Lima Firme

This chapter begins discussing the classical harmonic oscillator and its solution as a second-order differential equation of the general type. Next, the one-particle quantum harmonic oscillator is presented, its corresponding Hamiltonian functionand wave equation followed by the undimensionalization of this wave equation yielding a second-order differential equation of the general type which leads to the general Hermite equation and Hermite polinomials as partial solution of the wave function. The energy for each wave function is obtained from the recursion relation of the Hermite equation. Afterwards, the numerical analysis of the one-particle harmonic oscillator is given by using the Numerov numerical method. Finally, a corresponding Fortran code for this problem is presented in order to plot the wave function according to a pre-determined quantum number. Plots of the wave function obtained from the Fortran code are also given. In the end, some exercises are given to include other information in the Fortran code.(153words).

CRC Press eBooksMar 21, 20220 citations

The quantum-mechanical harmonic oscillator

Francisco Marcelo Fernández, Eduardo Alberto Castro

The harmonic oscillator is a useful model for the interpretation of many physical phenomena. It is used as a first approximation to the vibration of molecules and crystal lattices and for the quantization of electromagnetic fields, among other applications. One can solve the time-independent Schrodinger equation for the harmonic oscillator in many different ways; operator methods give rise to recurrence relations and generating functions for the stationary states. The coordinate representation renders the coordinate operator diagonal. In this particular representation the eigenvectors of the harmonic oscillator are functions of the coordinate that are commonly expressed in terms of Hermite polynomials. The chapter shows that calculation with the eigenfunctions of the harmonic oscillator is remarkably simple in the realm of the Lie algebras. The application of the bosonic algebra in theoretical physics and chemistry is so vast that it is impossible even to give a reasonable summary. An important application of the bosonic algebra is the modeling of simple quantum-mechanical systems.

CRC Press eBooksJan 16, 20200 citations