Origin of Magic Angular Momentum in a Quantum Dot under Strong Magnetic Field

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概要

• 論文の詳細を見る

• This paper investigates origin of the extra stability associated with particular values (magicnumbers) of the total angular momentum of electrons in a quantum dot under strong magneticfield. The ground-state energy, distribution functions of density and angular momentum, andpair correlation function are calculated in the strong field limit by numerical diagonalization ofthe system containing up to seven electrons. It is shown that the composite fermion pictureexplains the small magic numbers well, while a simple geometrical picture does better as themagic number increases. Combination of these two pictures leads to identification of all themagic numbers. Relation of the magic-number states to the Wigner crystal and the fractionalquantum Hall state is discussed.

• 社団法人日本物理学会の論文
• 1996-12-15

著者

• Nishino Tomotoshi

  Department Of Physics Faculty Of Science Kobe University

• Nishino Tomotoshi

  Department Of Physics Tohoku University

• Kuramoto Yoshio

  Department Of Applied Physics Faculty Of Engineering Tohoku University

• SEKI Taku

  Department of Physics,Tohoku University

• Seki Taku

  Department Of Physics Tohoku University

• Kuramoto Yoshio

  Department of Physics,Tohoku University

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