<p>Dear Developer,</p><p>Sorry to bother you!</p><p>I am a rookie in CP2K and find it quite challenging to apply the LR-TDDFT method for NA-MD. However, when I try to use this module to calculate the periodic system, I encounter some issues:</p><ol><li>What is the difference between .tdwfn and .wfn files? Does the .tdwfn file represent the wavefunction of the LR-TDDFT calculation?</li><li>After diagonalizing the KS-Hamiltonian matrix from the .csr files, I found that the eigenvalues are completely different from the energies in out.log. How can I resolve this discrepancy?</li><li> Can you explain the differences between the following overlap matrix files:<ul><li>S_SPIN_1-1_0.csr</li><li>S_SPIN_2-1_0.csr</li><li>S_SPIN_3-1_0.csr</li><li>S_SPIN_4-1_0.csr</li></ul></li></ol><p>Additionally, is there a detailed link or documentation that explains the output files in depth, including their format and content arrangement?</p><p>Thank you for your help!</p><p>Best regards,</p><p>Xuhui Xu </p><div><br /></div><div><br /></div>
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