Author： Belzig W. Samuelsson P.
Publisher： Edp Sciences
E-ISSN： 1286-4854|64|2|253-259
ISSN： 0295-5075
Source： EPL (EUROPHYSICS LETTERS), Vol.64, Iss.2, 2010-03, pp. : 253-259
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Abstract
We study the full counting statistics of heterostructuresconsisting of normal-metal parts connected to a superconductingterminal. Assuming that coherent superconducting correlations aresuppressed in the normal metals, we show, using the Keldysh-NambuGreen's function approach, that the system can be mapped onto apurely normal system with twice the number of elements. For asuperconducting beamsplitter with several normal terminals weobtain general results for the counting statistics.
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