<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div><div><br>Hi!</div><div>As we know, the wavefunction in the atomic sphere is written in case.almblm via lapw2. I want to make sure that whether this wave function is defintely Bloch eigenstate, i.e. psi_nk. For I have made a test that by calculating S(k,k')_nn'=<u_nk|u_n'k'> (attention we use lattice-peridoic function u.) A cyclic product, i.e. W=S(k1,k2)S(k2,k3)S(k3,k4)...S(k_N,k1), will be subject to the restriction of TP (if any) symmetry. TP symmetry, preserving momentum, will restrict the above matrix (i.e. W)'s determinant to be a real quantity. However I failed to reach that expected result. So may be I have some misunderstanding in the wavefunction of the sphere? (Note that the contribution out of the sphere is consistent with the expectation, but that of the atomic sphere is not.)</div><div>Best regards!</div><div>FT<br></div><div><br><br></div><div style="position:relative;zoom:1">--<br><p align="center"><strong style="FONT-FAMILY: Times New Roman; COLOR: #008000; FONT-SIZE: 24px"><em><u><font style="BACKGROUND-COLOR: #ffcc00; COLOR: #880000"><font style="BACKGROUND-COLOR: #ffcc00; COLOR: #880000">Nanji</font><font style="BACKGROUND-COLOR: #ffcc00; COLOR: #880000"></font>ng National Laboratory of Solid Microstructure </font></u></em></strong></p>
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