Litvin, L. V. and Helzel, A. and Tranitz, H. -P. and Wegscheider, W. and Strunk, C. (2010) Phase of the transmission amplitude for a quantum dot embedded in the arm of an electronic Mach-Zehnder interferometer. PHYSICAL REVIEW B, 81 (20): 205425. ISSN 1098-0121,
Full text not available from this repository.Abstract
We investigate an electronic Mach-Zehnder interferometer with high visibility in the quantum Hall regime. The superposition of the electrostatic potentials from a quantum point contact (QPC) and the residual disorder potential from doping impurities frequently results in the formation of inadvertent quantum dots (QDs) in one arm of the interferometer. This gives rise to resonances in the QPC transmission characteristics. While crossing the QD resonance in energy, the interferometer gains a phase shift of pi in the interference pattern.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | INTERFERENCE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 30 Jul 2020 11:01 |
| Last Modified: | 30 Jul 2020 11:01 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24730 |
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