Cascade Boltzmann-Langevin approach to higher-order current correlations in diffusive metal contacts

Physical Review B - Condensed Matter and Materials Physics

Volumn 66, Issue 7, 2002, Pages 753341-753346

  Nagaev, K E ^a  

^a RUSSIAN ACADEMY OF SCIENCES   (Russian Federation)

Author keywords

[No Author keywords available]

Indexed keywords

METAL;

ARTICLE; CALCULATION; CORRELATION ANALYSIS; DIFFUSION; ELECTRIC CURRENT; ELECTRIC POTENTIAL; MATHEMATICAL ANALYSIS; NOISE; QUANTUM MECHANICS;

EID: 0037104236     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.66.075334     Document Type: Article

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23. Both of these statements are in contrast with the claim made in Ref. 4. The conclusion of these authors was based on the fact that the third cumulant of current cannot be obtained correctly with purely local extraneous sources in the standard version of the Boltzmann-Langevin approach, which does not involve the above cascade mechanism. However, even this standard version yields non-Gaussian fluctuations in the quasiballistic regime (see the Appendix).