Coulomb blockade of tunneling through a double quantum dot
نویسندگان
چکیده
منابع مشابه
Coulomb blockade of tunneling through a double quantum dot.
We study the Coulomb blockade of tunneling through a double quantum dot. The temperature dependence of the linear conductance is strongly affected by the interdot tunneling. As the tunneling grows, a crossover from temperature-independent peak conductance to a power-law suppression of conductance at low temperatures is predicted. This suppression is a manifestation of the Anderson orthogonality...
متن کاملCoulomb blockade in an open quantum dot.
We report the observation of Coulomb blockade in a quantum dot contacted by two quantum point contacts each with a single fully transmitting mode, a system thought to be well described without invoking Coulomb interactions. Below 50 mK we observe a periodic oscillation in the conductance of the dot with gate voltage, corresponding to a residual quantization of charge. From the temperature and m...
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A theoretical approach to a problem of electron transport through double quantum dot systems based on non-equilibrium Green function formalism using equation of motion method is presented. I−V characteristics and differential conductance are calculated and discussed in detail in the intermediate regime with tunneling rate between the quantum dots comparable to coupling constants with external e...
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– Three terminal tunnelling experiments on quantum dots in the Coulomb-blockade regime allow a quantitative determination of the coupling strength of individual quantum states to the leads. Exploiting this insight we have observed independent fluctuations of the coupling strengths as a function of electron number and magnetic field due to changes in the shape of the wave function in the dot. Su...
متن کاملSupplementary Information for Coulomb Blockade in an Open Quantum Dot
S. Amasha, ∗ I. G. Rau, M. Grobis, † R. M. Potok, 3, ‡ H. Shtrikman, and D. Goldhaber-Gordon Department of Physics, Stanford University, Stanford, California 94305, USA Department of Applied Physics, Stanford University, Stanford, California 94305, USA Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA Department of Condensed Matter Physics, Weizmann Institute of Sci...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1996
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.54.5637