[CP2K-user] TDDFPT excitation analysis problem

[Matt W]

Impossible to say from the information you give us. If the system has 
symmetry then two states could well have the same energies.

On Wednesday, June 24, 2020 at 1:21:46 PM UTC+1, Mohammad Shakiba wrote:
>
> Hello everyone,
>
> I ran TDDFPT calculations for (CdSe)33 QDs. The problem is that the 
> excited state energy for two considered excited states are the same in 
> excitation analysis and also their excitation coefficient amplitudes are 
> the same. Is it correct or an error?
>
> Thanks in advance. 
>
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