Point-contact conductances from density correlations.
نویسندگان
چکیده
We formulate and prove an exact relation which expresses the moments of the two-point conductance for an open disordered electron system in terms of certain density correlators of the corresponding closed system. As an application of the relation, we demonstrate that the typical two-point conductance for the Chalker-Coddington model at criticality transforms like a two-point function in conformal field theory.
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ورودعنوان ژورنال:
- Physical review letters
دوره 86 10 شماره
صفحات -
تاریخ انتشار 2001