ITP OpenIR  > SCI期刊论文
Utsumi, Y; Entin-Wohlman, O; Ueda, A; Aharony, A; Utsumi, Y (reprint author), Mie Univ, Fac Engn, Dept Engn Phys, Tsu, Mie 5148507, Japan.
Full-counting statistics for molecular junctions: Fluctuation theorem and singularities
Source PublicationPHYSICAL REVIEW B
Language英语
KeywordSelf-consistent Approximations Universal Oscillations Mechanics Systems States Model
AbstractWe study the full-counting statistics of charges transmitted through a single-level quantum dot weakly coupled to a local Einstein phonon which causes fluctuations in the dot energy. An analytic expression for the cumulant generating function, accurate up to second order in the electron-phonon coupling and valid for finite voltages and temperatures, is obtained in the extended wide-band limit. The result accounts for nonequilibrium phonon distributions induced by the source-drain bias voltage, and concomitantly satisfies the fluctuation theorem. Extending the counting field to the complex plane, we investigate the locations of possible singularities of the cumulant generating function, and exploit them to identify regimes in which the electron transfer is affected differently by the coupling to the phonons. Within a large-deviation analysis, we find a kink in the probability distribution, analogous to a first-order phase transition in thermodynamics, which would be a unique hallmark of the electron-phonon correlations. This kink reflects the fact that although inelastic scattering by the phonons once the voltage exceeds their frequency can scatter electrons opposite to the bias, this will never generate current flowing against the bias at zero temperature, in accordance with the fluctuation theorem. DOI: 10.1103/PhysRevB.87.115407
2013
ISSN1098-0121
Volume87Issue:11Pages:115407
Subject AreaPhysics
Indexed BySCI
Funding OrganizationBination Science Foundation (BSF) of the US and Israel; Israel Science Foundation (ISF); Okasan-Katoh Foundation; Young Researcher Overseas Visits Program for Vitalizing Brain Circulation from the JSPS [R2214]; MEXT kakenhi "Quantum Cybernetics"; [23740294]; [24710111] ; Bination Science Foundation (BSF) of the US and Israel; Israel Science Foundation (ISF); Okasan-Katoh Foundation; Young Researcher Overseas Visits Program for Vitalizing Brain Circulation from the JSPS [R2214]; MEXT kakenhi "Quantum Cybernetics"; [23740294]; [24710111] ; Bination Science Foundation (BSF) of the US and Israel; Israel Science Foundation (ISF); Okasan-Katoh Foundation; Young Researcher Overseas Visits Program for Vitalizing Brain Circulation from the JSPS [R2214]; MEXT kakenhi "Quantum Cybernetics"; [23740294]; [24710111] ; Bination Science Foundation (BSF) of the US and Israel; Israel Science Foundation (ISF); Okasan-Katoh Foundation; Young Researcher Overseas Visits Program for Vitalizing Brain Circulation from the JSPS [R2214]; MEXT kakenhi "Quantum Cybernetics"; [23740294]; [24710111]
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Cited Times:44[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15401
CollectionSCI期刊论文
Corresponding AuthorUtsumi, Y (reprint author), Mie Univ, Fac Engn, Dept Engn Phys, Tsu, Mie 5148507, Japan.
Recommended Citation
GB/T 7714
Utsumi, Y,Entin-Wohlman, O,Ueda, A,et al. Full-counting statistics for molecular junctions: Fluctuation theorem and singularities[J]. PHYSICAL REVIEW B,2013,87(11):115407.
APA Utsumi, Y,Entin-Wohlman, O,Ueda, A,Aharony, A,&Utsumi, Y .(2013).Full-counting statistics for molecular junctions: Fluctuation theorem and singularities.PHYSICAL REVIEW B,87(11),115407.
MLA Utsumi, Y,et al."Full-counting statistics for molecular junctions: Fluctuation theorem and singularities".PHYSICAL REVIEW B 87.11(2013):115407.
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