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New Findings from Tsinghua University in the Area of Quantum Dots Described (Power-law behavior in electron transport through a quantum dot with...

September 2, 2014



New Findings from Tsinghua University in the Area of Quantum Dots Described (Power-law behavior in electron transport through a quantum dot with Luttinger liquid leads)

By a News Reporter-Staff News Editor at Physics Week -- Research findings on Quantum Dots are discussed in a new report. According to news reporting from Beijing, People's Republic of China, by VerticalNews journalists, research stated, "The electron transport of a system consisting of a Kondo dot and two Luttinger liquid (LL) leads is theoretically studied by use of nonequilibrium Green function approach. In the Kondo regime, the zero bias anomaly appears and the density of states of the dot obeys a power-law scaling at positive energy part with an exponent beta/2 = 1/g - 1, where g reflects the electron interaction in the LL leads."

The news correspondents obtained a quote from the research from Tsinghua University, "The differential conductance shows a power-law scaling both in bias voltage and in temperature, with the exponent being beta. The power-law temperature dependence of the peak conductance is observed in different temperature regimes. These features are ascribed to the LL correlation in the leads."

According to the news reporters, the research concluded: "Our work describes both the zero bias anomaly and power-law scalings within one theoretical frame."

For more information on this research see: Power-law behavior in electron transport through a quantum dot with Luttinger liquid leads. European Physical Journal B, 2014;87(8):50-57. European Physical Journal B can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (EDP Sciences - publications.edpsciences.org/; European Physical Journal B - epjb.edpsciences.org)

Our news journalists report that additional information may be obtained by contacting K.H. Yang, Tsinghua Univ, Dept. of Phys, Beijing 100084, People's Republic of China. Additional authors for this research include X. He, H.Y. Wang, K.D. Liu and B.Y. Liu.

Keywords for this news article include: Asia, Beijing, Physics, Power Law, Quantum Dots, Nanotechnology, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Physics Week


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