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green325

ľ³æ (ÖøÃûдÊÖ)

[ÇóÖú] ÇóÖúÒ»¸ö¹ØÓÚmatlab±à³ÌµÄÎÊÌâ

G=0.1+nd;
¶ønd=G+G';Ò²¾ÍÊÇ˵ndÓÖÓÉGÀ´¾ö¶¨
ÕâÑùµÄÎÊÌâÔõôÓÃmatlab±à³ÌÄØ?

a=2\pi*0.41kHz;  b=0.02kHz;  c=1000kHz;  T=1nK;  E0=2.0kHz;$

Z=\frac{-ib^2}{\sqrt{E^2+a^2}}\left(
                                \begin{array}{cc}
                                  E & a \\
                                  a & -E \\
                                \end{array}
                              \right)

G0=\frac{1}{(E-E0)(E-E0-c/2)}\left(
                                \begin{array}{cc}
                                  E-E0-\frac{c}{2}+\frac{c}{2}nd & 0 \\
                                  0& -E-E0-\frac{c}{2}+\frac{c}{2}nd \\
                                \end{array}
                              \right)

G=\frac{1}{1/G0-Z}

nd=i\int\frac{dE}{2\pi}\frac{1}{e^{E/T}-1}(G(1,1)-G'(1,1))


Çónd

[ Last edited by green325 on 2007-9-2 at 16:22 ]

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green325

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cronquist

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3Â¥2007-09-19 11:25:40
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