Abstract
The metallic quantum dot copuled to a reservoir of electrons, using a single mode point contact and capacitively connected to a back gate was discussed. The gate voltage exhibit noise when connected to a transmission line with a finite impedance. The Bose-Fermi spin model shows that metallic granule and a low transparency tunnel barrier at zero point fluctuation of transmission line alter the quantum tunneling of electrons at low energy. The quantum charges fluctuations necessitates the application of a strong inplane magnetic field which leads to transmission coefficient between the metal lead and grain.
| Original language | English |
|---|---|
| Article number | 196804 |
| Pages (from-to) | 196804-1-196804-4 |
| Journal | Physical Review Letters |
| Volume | 92 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 14 May 2004 |
| Externally published | Yes |