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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
发表期刊PHYSICAL REVIEW B
语种英语
关键词Self-consistent Approximations Universal Oscillations Mechanics Systems States Model
摘要We 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
卷号87期号:11页码:115407
学科领域Physics
收录类别SCI
项目资助者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] ; 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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被引频次:39[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15401
专题理论物理所科研产出_SCI论文
通讯作者Utsumi, Y (reprint author), Mie Univ, Fac Engn, Dept Engn Phys, Tsu, Mie 5148507, Japan.
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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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