QuantumATK Forum
QuantumATK => General Questions and Answers => Topic started by: simin on April 4, 2022, 23:53
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Hi all,
I would like to calculate <u_{n1,k1}|u_{n2,k2}>, where |u_{n1,k1}> is the periodic
function of Bloch wave function. How can I do it based on the output files of QuantumATK?
Thanks!
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Hi,
Since the overlap matrix depends on k, the easiest way to calculate the overlap between two Bloch states at two different k-point is to do it in a real-space representation. For this you can use the BlochState analysis object. I have attached a script, which calculates the overlap between two Bloch states in Silicon. I hope this can help you.
Regards,
Troels