Quantum control of two interacting electrons in a coupled quantum dot
نویسندگان
چکیده
منابع مشابه
Interacting Electrons in a 2d Quantum Dot
The exact numerical diagonalization of the Hamiltonian of a 2D circular quantum dot is performed for 2, 3, and 4 electrons.The results are compared with those of the perturbation theory.Our numerical results agree reasonably well for small values of the dimensionles coupling constant λ = a a B where a is the dot radius and a B is the effective Bohr radius.Exact diagonalization results are compa...
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The spectral properties of up to four interacting electrons confined within a quasi one–dimensional system of finite length are determined by numerical diagonalization including the spin degree of freedom. The ground state energy is investigated as a function of the electron number and of the system length. The limitations of a description in terms of a capacitance are demonstrated. The energet...
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The shifted 1/N expansion technique used by El-Said (Phys. Rev. B 61, 13026 (2000)), to study the relative Hamiltonian of two interacting electrons confined in a quantum dot, is investigated. El-Said’s results from SLNT are revised and results from an alternative method are also reported. The distinctive role of the central spike term, (m − 1/4)/q, in determining spectral properties of the abov...
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ژورنال
عنوان ژورنال: Chinese Physics
سال: 2006
ISSN: 1009-1963,1741-4199
DOI: 10.1088/1009-1963/15/9/038