polarizability calculation in nwchem


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Hello,

I am trying to calculate the polarizability of small polymer systems. These systems are periodic and around 1000 atoms.

I have a few questions regarding this calculation:

1. I have tried to use DFT Module + "system crystal" thinking that this would make this system periodic. Are periodic boundary conditions implemented for the DFT Module?

2. Also is the property module applicable with the NWPW module? I know that NWPW can handle periodic boundary conditions, but I am not sure if it can be used to calculate polarizability since I haven't been able to find any examples.

Thank you for any suggestions/help/advice.