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Two-state systems, like proton spin states (spin up and spin down), are quite amenable to quantum-mechanical computations, because the formalism is comparatively simple to deal
Two-state systems, like proton spin states (spin up and spin down), are quite amenable to quantum-mechanical computations, because the formalism is comparatively simple to deal with. Operators involved in proton NMR, for example, are often represented as 22 matrices. The Pauli matrices (along with the identity matrix) are particularly useful for two-state systems. They are defined as follows: 0=I=[1001]1=[0110]2=[0+ii0]3=[1001] Which of these operators is Hermitian? Show this is or is not the case for each of these four operators. (Hermitian operators are important in quantum mechanics because the eigenvalues of a Hermitian operator are guaranteed to be pure real numbers. In mathematical terms, Hermitian operators are self-adjoint, meaning A=A. The adjoint of a matrix can be determined by writing down the transpose of the matrix, and then taking the complex conjugate of each element of that transposed matrix.)
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