Eigenvalues | Quantum Science Philippines
Quantum Science Philippines

Eigenvectors and Eigenvalues of a Perturbed Quantum System

Wednesday, June 24th, 2009

by  HENRILEN A. CUBIO
Finding the eigenvectors and eigenvalues of the state of a quantum system is one of the most important concepts in quantum mechanics. And it is here where many students get confused.
In order to learn this by heart, one has to do several exercises.  There are many ways that can be employed when [...]

Posted in Eigenvalues And Eigenvectors, Hermitian Operators, Quantum Science Philippines | 20 Comments »


Simultaneous Diagonalization of Hermitian Matrices

Friday, May 8th, 2009

by MARYJANE D. MADULARA
In an earlier post about the properties of Hermitian operators, it was noted that quantum operators of physical significance are Hermitian by type. Here we discuss more fully about Hermitian matrices.
A n x n matrix is Hermitian if it is equal to its corresponding adjoint matrix. Now, for each Hermitian matrix, it [...]

Posted in Eigenvalues And Eigenvectors, Hermitian Operators, Quantum Science Philippines | 11 Comments »


Properties of Quantum Oscillators 1

Friday, April 3rd, 2009

by SIMON JUDE BURGOS

In this post we investigate the properties of a quantum oscillator by using an algebraic tool in quantum mechanics called ‘ladder operators’. Using the ladder operator it becomes easy to find the following properties for a quantum oscillator in a given energy level:  the average position and momentum and the square of [...]

Posted in Quantum Oscillators, Quantum Science Philippines, quantum physics | 7 Comments »


Properties of Hermitian Operators

Friday, March 13th, 2009

by BEBELYN A. ROSALES

Linear operators in quantum mechanics may be represented by matrices. A type of linear operator of importance is the so called Hermitian operator.  An operator is Hermitian if each element is equal to its adjoint. Most quantum operators, for example the Hamiltonian of a system, belong to this type.
Now linear operators are [...]

Posted in Hermitian Operators, Quantum Science Philippines | 12 Comments »