Gemma C. Solomon Nano Science Centre and Department ... - AtMol
Gemma C. Solomon Nano Science Centre and Department ... - AtMol
Gemma C. Solomon Nano Science Centre and Department ... - AtMol
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Calculating conductance<br />
<br />
α β<br />
<br />
E = α − β<br />
H =<br />
β α<br />
E = α + β<br />
Γ L =<br />
<br />
2a 0<br />
0 0<br />
Γ R =<br />
<br />
0 0<br />
02a<br />
<br />
Σ = i(Γ L + Γ R )<br />
2<br />
H =H − Σ<br />
α − ia<br />
=<br />
β<br />
β<br />
α− ia<br />
<br />
G r =<br />
1<br />
ES− H <br />
G a = G r†<br />
T =Tr[Γ L G r Γ R G a ]
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