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Eugeniu Plamadeala edited untitled.tex
about 9 years ago
Commit id: fe80605f4be7cc95b8cc3ebef119d7a6b37f9f8d
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diff --git a/untitled.tex b/untitled.tex
index 9a6fc77..f868a0f 100644
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This implies that total momentum of fermions is
$$ P = - \sum_I k_{F,I} ( \psi^\dagger_{R,I} \psi_{R,I} - \psi^\dagger_{L,I} \psi_{L,I}
) + \sum_I
\psi^\dagger_{R,I} (\psi^\dagger_{R,I} (i\partial_x) \psi_{R,I} + \psi^\dagger_{L,I} (i\partial_x) \psi_{L,I}
)$$
Bosons (we have a factor of 2 difference in the $k_F$ term Mike, eq 1.22)
$$
P = \frac{1}{4\pi} \sum_I k_{F,I} \left(