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Distribution of voltage fluctuations in a current-biased conductor | | M. Kindermann
; Yu.V. Nazarov
; C.W.J. Beenakker
; | | Date: |
28 Oct 2002 | | Journal: | Phys.Rev.Lett. 90, 246805 (2003) DOI: 10.1103/PhysRevLett.90.246805 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Abstract: | We calculate the fluctuating voltage V(t) over a conductor driven out of equilibrium by a current source. This is the dual of the shot noise problem of current fluctuations I(t) in a voltage-biased circuit. In the single-channel case the distribution of the accumulated phase Phi=(e/hbar)int Vdt is the Pascal (or binomial waiting-time) distribution -- distinct from the binomial distribution of transferred charge Q=int Idt. The weak-coupling limit of a Poissonian P(Phi) is reached in the limit of a ballistic conductor, while in the tunneling limit P(Phi) has the chi-square form. | | Source: | arXiv, cond-mat/0210617 | | Services: | Forum | Review | PDF | Favorites | |
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