Kueng, B. and Pfaeffli, O. and Gustavsson, S. and Ihn, T. and Ensslin, K. and Reinwald, M. and Wegscheider, W. (2009) Time-resolved charge detection with cross-correlation techniques. PHYSICAL REVIEW B, 79 (3): 035314. ISSN 1098-0121,
Full text not available from this repository.Abstract
We present time-resolved charge-sensing measurements on a GaAs double quantum dot with two proximal quantum point-contact (QPC) detectors. The QPC currents are analyzed with cross-correlation techniques, which enable us to measure dot charging and discharging rates for significantly smaller signal-to-noise ratios than required for charge detection with a single QPC. This allows us to reduce the current level in the detector and therefore the invasiveness of the detection process and may help to increase the available measurement bandwidth in noise-limited setups.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM POINT-CONTACT; READ-OUT; ELECTRONS; NOISE; DOT; electric sensing devices; gallium arsenide; III-V semiconductors; quantum point contacts; semiconductor quantum dots; single electron devices; time resolved spectra |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Oct 2020 15:21 |
| Last Modified: | 13 Oct 2020 15:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29864 |
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