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<p>Dear PWSCF users and developers.<br>
<br>
I want to know the possibility of excited state gradients in TDDFT implemented in <br>
<br>
Quantum Espresso.<br>
<br>
Can the PWSCF calculate the excited state gradients (Force of atoms in excited state )<br>
<br>
by PWSCF, or are there plan to develop the excited state gradient calculation ? <br>
<br>
The implementation of TDDFT in PWSCf uses lanczos method and does not <br>
<br>
explicitly calculate the excited energy, and is it difficult to extend to <br>
<br>
calculate force in this formalism ? <br>
<br>
<br>
Sincerely,<br>
<br>
Yukihiro Okuno.<br>
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