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What is "on-site energy"

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yolanda7:
I wonder what is "on site energy" and the corresponding uasge.



Thank you!

kstokbro:
The hamiltonian has matrix elements H_ii , these are called onsite terms.

The offsite terms H_ij are matrix elements with neighbor orbitals

yolanda7:

--- Quote from: kstokbro on March 29, 2011, 00:50 ---The hamiltonian has matrix elements H_ii , these are called onsite terms.

The offsite terms H_ij are matrix elements with neighbor orbitals

--- End quote ---

Thank you

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