Yambo Community Forum

Hello,

When momentum cancels, the G=0 term in the electron-hole exchange integral is eliminated for BSE calculations. However, this terminology is important for studying vertical and horizontal separation. I'm wondering if it's possible to add the term G=0?

Dear ramiroflores ,

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You can include the G=0 term in the exchange by setting: in the BSE input file.

Best,
Daniele