Diagrammatic method of integration over the unitary group, with applications to quantum transport in mesoscopic systems
classification
❄️ cond-mat
keywords
methoddiagrammaticquantumapplicationsappliedaveragingcavitychaotic
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A diagrammatic method is presented for averaging over the circular ensemble of random-matrix theory. The method is applied to phase-coherent conduction through a chaotic cavity (a ``quantum dot'') and through the interface between a normal metal and a superconductor.
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