The Hamiltonian for a spin 1/2 particle in 2 or more magnetic fields is the sum of its Hamiltonians for each field separately. For instance if I break a magnetic field into components in some coordinate system then the full Hamiltonian is the sum of the separate Hamiltonians for each co-ordinate magnetic field.(adsbygoogle = window.adsbygoogle || []).push({});

Can someone explain the Physics of why the Hamiltonians can be linearly superposed in this case?

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# Linear Superposition of Hamiltonians

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