Abstract
The effect of gate voltage fluctuations on transport through a double quantum dot charge qubit was investigated. The two quantum phase were found such as 'Kondo' phase where an orbital-Kondo entanglement emerges and a 'local moment' phase. A striking I-V characteristics was observed as a result of the prolifis combination between orbital-kondo entanglement and dissipative cotunneling. It was found that the orbital-kondo effect become suppressed and the orbital spin acts like a free moment which completely depletes the current, when the coupling to the dissipative environemnts becomes large.
| Original language | English |
|---|---|
| Article number | 176802 |
| Pages (from-to) | 176802-1-176802-4 |
| Journal | Physical Review Letters |
| Volume | 93 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2 Oct 2004 |
| Externally published | Yes |