抄録
We propose optical phonon lasing for a double quantum dot (DQD) fabricated in a semiconductor substrate. We show that the DQD is weakly coupled to only two LO phonon modes that act as a natural cavity. The lasing occurs for pumping the DQD via electronic tunneling at rates much higher than the phonon decay rate, whereas an antibunching of phonon emission is observed in the opposite regime of slow tunneling. Both effects disappear with an effective thermalization induced by the Franck-Condon effect in a DQD fabricated in a carbon nanotube with a strong electron-phonon coupling.
本文言語 | English |
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論文番号 | 013704 |
ジャーナル | Journal of the Physical Society of Japan |
巻 | 82 |
号 | 1 |
DOI | |
出版ステータス | Published - 2013 1月 |
ASJC Scopus subject areas
- 物理学および天文学(全般)