ON QUANTUM NOISE
ON QUANTUM NOISE
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DOI:
10.1007/978-94-011-0019-9_28
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发表时间:
1995
期刊:
影响因子:
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通讯作者:
B. Muzykantskii;D. Khmelnitskii
中科院分区:
文献类型:
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作者:
B. Muzykantskii;D. Khmelnitskii
We discuss the distribution function for the current noise in Quantum point contacts. Special interest is paid to contact of a superconductor with a normal metal. A new derivation of the Lesovik-Levitov formulae is suggested. It is shown, for the SN point contacts, that the distribution of the noise describes independent processes when charge ±e0or ±2e0passes through the contact. At low temperature and voltage only processes with double charge transfer are relevant. At zero temperature and low voltage the distribution has a binomial form.