### 抄録

Transport properties through a quantum dot are examined based on exact diagonal calculations of many-body states, when the Coulomb interaction energy is comparable with one-electron level spacings. The peak positions of Coulomb oscillation show an atomic-like shell structure of one-electron levels, in agreement with recent experimental results. Some peaks of the conductance increase in height with increasing temperature. This anomalous temperature dependence reflects a level spacing as small as 1K and total spin of the ground state. The transport properties through coupled two dots are also investigated. We show that the correlation effect influences the peak heights of the conductance. These phenomena exemplify the observation of many-body wavefunctions in quantum dots, by the Coulomb oscillation.

元の言語 | English |
---|---|

ページ（範囲） | 199-202 |

ページ数 | 4 |

ジャーナル | Physica Status Solidi (B) Basic Research |

巻 | 205 |

発行部数 | 1 |

出版物ステータス | Published - 1998 1 |

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### ASJC Scopus subject areas

- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics

### これを引用

*Physica Status Solidi (B) Basic Research*,

*205*(1), 199-202.

**Exact Diagonal Calculations of Coulomb Oscillations in Quantum Dots.** / Eto, Mikio.

研究成果: Article

*Physica Status Solidi (B) Basic Research*, 巻. 205, 番号 1, pp. 199-202.

}

TY - JOUR

T1 - Exact Diagonal Calculations of Coulomb Oscillations in Quantum Dots

AU - Eto, Mikio

PY - 1998/1

Y1 - 1998/1

N2 - Transport properties through a quantum dot are examined based on exact diagonal calculations of many-body states, when the Coulomb interaction energy is comparable with one-electron level spacings. The peak positions of Coulomb oscillation show an atomic-like shell structure of one-electron levels, in agreement with recent experimental results. Some peaks of the conductance increase in height with increasing temperature. This anomalous temperature dependence reflects a level spacing as small as 1K and total spin of the ground state. The transport properties through coupled two dots are also investigated. We show that the correlation effect influences the peak heights of the conductance. These phenomena exemplify the observation of many-body wavefunctions in quantum dots, by the Coulomb oscillation.

AB - Transport properties through a quantum dot are examined based on exact diagonal calculations of many-body states, when the Coulomb interaction energy is comparable with one-electron level spacings. The peak positions of Coulomb oscillation show an atomic-like shell structure of one-electron levels, in agreement with recent experimental results. Some peaks of the conductance increase in height with increasing temperature. This anomalous temperature dependence reflects a level spacing as small as 1K and total spin of the ground state. The transport properties through coupled two dots are also investigated. We show that the correlation effect influences the peak heights of the conductance. These phenomena exemplify the observation of many-body wavefunctions in quantum dots, by the Coulomb oscillation.

UR - http://www.scopus.com/inward/record.url?scp=0032326318&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032326318&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0032326318

VL - 205

SP - 199

EP - 202

JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

SN - 0370-1972

IS - 1

ER -