In Quantum Mechanics, Ω is called an 𝐨𝐛𝐬𝐞𝐫𝐯𝐚𝐛𝐥𝐞 only if it can be represented by a Hermitian operator acting on the Hilbert space.pic.twitter.com/SLvTZ3SPUT
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Property 2: Eigenvectors of a hermitian operator Ω with *distinct* eigenvalues are orthogonal.pic.twitter.com/fceXleLAB7
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