### Abstract

We study the time-dependent (TD) phenomena of the electron-hole or electron-electron pair confined in the square quantum dot (SQD) system by computationally solving TD Schroedinger equation under the unrestricted Hartree-Fock (UHF) approach. A typical vacillation is found both in the electron and hole when the charged pair is strongly confined in the SQD while the charged particles have initially the same orbital symmetry. The FFT analysis elucidates that the transition matrix element due to the coulomb interaction involves the eigen frequency ω being equal to the excitation energy when the resonative vacillation appears. Thus, Coulomb potential has a potential to cause the self-induced "Rabi" oscillation when the charged-particle pair is confined only in the QD.

Original language | English |
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Title of host publication | AIP Conference Proceedings |

Pages | 365-366 |

Number of pages | 2 |

Volume | 1399 |

DOIs | |

Publication status | Published - 2011 |

Event | 30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul Duration: 2010 Jul 25 → 2010 Jul 30 |

### Other

Other | 30th International Conference on the Physics of Semiconductors, ICPS-30 |
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City | Seoul |

Period | 10/7/25 → 10/7/30 |

### Fingerprint

### Keywords

- charged-particle pair
- quantum dot
- Rabi oscillation
- time-dependent phenomena

### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

*AIP Conference Proceedings*(Vol. 1399, pp. 365-366) https://doi.org/10.1063/1.3666405

**Self-induced oscillation for electron-hole pair confined in quantum dot.** / Tagawa, Tomoki; Tsubaki, Atsushi; Ishizuki, Masamu; Takeda, Kyozaburo.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*AIP Conference Proceedings.*vol. 1399, pp. 365-366, 30th International Conference on the Physics of Semiconductors, ICPS-30, Seoul, 10/7/25. https://doi.org/10.1063/1.3666405

}

TY - GEN

T1 - Self-induced oscillation for electron-hole pair confined in quantum dot

AU - Tagawa, Tomoki

AU - Tsubaki, Atsushi

AU - Ishizuki, Masamu

AU - Takeda, Kyozaburo

PY - 2011

Y1 - 2011

N2 - We study the time-dependent (TD) phenomena of the electron-hole or electron-electron pair confined in the square quantum dot (SQD) system by computationally solving TD Schroedinger equation under the unrestricted Hartree-Fock (UHF) approach. A typical vacillation is found both in the electron and hole when the charged pair is strongly confined in the SQD while the charged particles have initially the same orbital symmetry. The FFT analysis elucidates that the transition matrix element due to the coulomb interaction involves the eigen frequency ω being equal to the excitation energy when the resonative vacillation appears. Thus, Coulomb potential has a potential to cause the self-induced "Rabi" oscillation when the charged-particle pair is confined only in the QD.

AB - We study the time-dependent (TD) phenomena of the electron-hole or electron-electron pair confined in the square quantum dot (SQD) system by computationally solving TD Schroedinger equation under the unrestricted Hartree-Fock (UHF) approach. A typical vacillation is found both in the electron and hole when the charged pair is strongly confined in the SQD while the charged particles have initially the same orbital symmetry. The FFT analysis elucidates that the transition matrix element due to the coulomb interaction involves the eigen frequency ω being equal to the excitation energy when the resonative vacillation appears. Thus, Coulomb potential has a potential to cause the self-induced "Rabi" oscillation when the charged-particle pair is confined only in the QD.

KW - charged-particle pair

KW - quantum dot

KW - Rabi oscillation

KW - time-dependent phenomena

UR - http://www.scopus.com/inward/record.url?scp=84855497337&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84855497337&partnerID=8YFLogxK

U2 - 10.1063/1.3666405

DO - 10.1063/1.3666405

M3 - Conference contribution

AN - SCOPUS:84855497337

SN - 9780735410022

VL - 1399

SP - 365

EP - 366

BT - AIP Conference Proceedings

ER -