We analyze the shot noise of a spin-degenerate electronic level coupled to an harmonic oscillator in the presence of relaxation. We show that the electromechanical coupling can induce a suppression of the Fano, factor below the value expected without phonons F = 5/9. Moreover, in the presence of finite relaxation, the Fano factor can be even reduced below 1/2. (C) 2007 Elsevier B.V. All rights reserved.
Suppression of the Fano factor in nanoelectromechanical systems
Cavaliere F;Fazio R;Sassetti M
2008-01-01
Abstract
We analyze the shot noise of a spin-degenerate electronic level coupled to an harmonic oscillator in the presence of relaxation. We show that the electromechanical coupling can induce a suppression of the Fano, factor below the value expected without phonons F = 5/9. Moreover, in the presence of finite relaxation, the Fano factor can be even reduced below 1/2. (C) 2007 Elsevier B.V. All rights reserved.File in questo prodotto:
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