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My problem is...

suppose take the spin Hamiltonian H_{ham}=D[S_{z}^{2}-S(S+1)/3 +(E/D)(S_{y}^{2}-S_{y}^{2})] +H_{i}[tex]\vec{S}[/tex] (most often in EPR experiments, etc).

here external magnetic field Hamiltonian H_{i}= [tex]\beta[/tex]g_{i}B_{i}^{ext}and i =x, y and z. Also g_{x}=g_{y}=g_{z}=2 and the external magnetic field is parallel/along z-axis. M_{s}is the magnetic quantum number.

What i dont know.. Using S=5/2 and writing down in the |5/2,M_{s}> representation yields a matrix (from the above spin Hamiltonian)...I really dont know how to write it.(may be in other words how to label spin Hamiltonian by M_{s})..But i have the solution...Can anyone help me?? I am really frustrated about this problem..

advance thanks for helping me..

Rajini

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# Hamiltonian matrix problem

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