INTERACTING ELECTRONS IN A ONE-DIMENSIONAL QUANTUM-DOT

Article

关键词: SMALL TUNNEL-JUNCTIONS;    COULOMB-BLOCKADE;    OSCILLATIONS;    CONDUCTANCE;    TRANSPORT;    DYNAMICS;   

DOI  :  10.1103/PhysRevB.47.16353

来源: SCIE

【 摘 要 】

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 energetically lowest-lying excitations are physically explained as vibrational and tunneling modes. The limits of a dilute, Wiper-type arrangement of the electrons, and a dense, more homogeneous charge distribution are discussed.

【 授权许可】

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