Coulomb blockade of a three-terminal quantum dot
نویسندگان
چکیده
منابع مشابه
Coulomb 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...
متن کاملCoulomb 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 کاملMulti-terminal transport through a quantum dot in the Coulomb blockade regime
– 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...
متن کاملPositive cross-correlations due to dynamical channel blockade in a three-terminal quantum dot
We investigate current fluctuations in a three-terminal quantum dot in the sequential tunneling regime. In the voltage-bias configuration chosen here, the circuit is operated as a beam splitter, i.e., one lead is used as an input and the other two as outputs. In the limit where a double occupancy of the dot is not possible, a super-Poissonian Fano factor of the current in the input lead and pos...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2008
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.77.045329