A spin observable is represented by the Hermitian matrix

PHYSICS · Subjective · Fermi University Physics · Mathematical Methods for Physics · Quantum Mechanics · Linear algebra and vector spaces

Quantum Mechanics: From the Photon to the Hydrogen Atom, Ch Spin one-half, the Pauli matrices and two-level systems

Problem

A spin observable is represented by the Hermitian matrix M=ℏ2(0.60.80.8−0.6)M = \dfrac{\hbar}{2}\begin{pmatrix}0.6&0.8\\ 0.8&-0.6\end{pmatrix}. Using the method of this chapter's worked example, find its eigenvalues and normalised eigenvectors, and check the eigenvectors are orthogonal.

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