Lee, Kang-Ho and Kang, Kicheon (2011) Quantum-limited charge detection with two quantum point contacts. PHYSICAL REVIEW B, 84 (3): 033404. ISSN 1098-0121,
Full text not available from this repository. (Request a copy)Abstract
We present a scheme for tuning two quantum point contacts as a quantum-limited charge detector. Based on the scattering matrix approach, we analyze a general condition of quantum-limited detection with a single-channel quantum detector possessing time-reversal symmetry. From this analysis we find that quantum-limited detection can be easily realized with two quantum point contacts connected in series, which is not possible if only a single quantum point contact is used. We also discuss the sensitivity enhancement due to multiple reflections of the two point contacts.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DOT; INTERFEROMETER; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Jun 2020 08:42 |
| Last Modified: | 05 Jun 2020 08:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/20547 |
Actions (login required)
 |
View Item |
