Resonance theory for discrete models: methodology and isolated resonances.

Resonance theory for discrete models: methodology and isolated resonances.
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离散模型的共振理论:方法论和孤立共振。

DOI:
10.1063/1.3577997
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发表时间:
2011
期刊:
The Journal of chemical physics
影响因子:
--
通讯作者:
N. Hatano
N. Hatano
中科院分区:
--
文献类型:
--
作者:
S. Klaiman;N. Hatano

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在这里,我们考虑定义在离散空间上的开放量子系统,其动机是对通过纳米级器件(如分子结和量子点)的电子传导的实验和理论兴趣。我们特别关注通过系统的电导共振的影响。本文发展了一种利用绿色函数展开式计算开放量子系统电导的方法。与以前的方法,其中一个可以治疗只有窄的共振远离带边缘在一个令人满意的方式与洛伦兹配置文件不同,我们的方法提供了一种新的共振配置文件,可以用来描述任何孤立的共振在光谱中,甚至接近带边缘。
We here consider open quantum systems defined on discretized space, motivated by experimental and theoretical interest in the electronic conduction through nanoscale devices such as molecular junctions and quantum dots. We particularly focus on effects of resonances on the conductance through the systems. We develop a method of calculating the conductance with the use of Green's function expansion with respect to the eigenstates of the effective Hamiltonian for the open quantum systems. Unlike previous methodologies where one can treat only narrow resonances far from the band edges in a satisfactory manner with a Lorentzian profile, our method provides a novel resonance profile which can be used to describe any isolated resonance in the spectrum even close to the band edges.
DOI: 10.1103/physrevlett.102.146803
发表时间: 2009-04
影响因子: 8.6
作者:
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通讯作者: A. Nishino;T. Imamura;N. Hatano
纳米系统中共振输运的量子干涉效应
DOI: --
发表时间: 2005
期刊: Physica E 29
影响因子: --
作者:
K. Sasada;N. Hatano
通讯作者: N. Hatano