 97202 YongJihn Kim
 Pairing in the Bogoliubovde Gennes Equations
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Apr 9, 97

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Abstract. It is shown that the Bogoliubovde Gennes equations
pair the electrons in states which are linear combinations of the
normal states. Accordingly, the BCSlike reduction procedure is required
to choose a correct pairing. For a homogeneous system, we point out that
the kernel of the selfconsistency equation
derived from the Bogoliubovde Gennes equations
needs to be constrained by the BCS pairing condition.
In the presence of ordinary impurities, on the other hand, the
Bogoliubovde Gennes equations should be supplemented by Anderson's pairing
condition to obtain the correct vacuum state by the corresponding unitary
transformation. This results in localization correction to the
phononmediated interaction.
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