Spin blockade and coherent dynamics of high-spin states in a three-electron double quantum dot
| Autor: | Guang-Can Guo, Hai-Ou Li, Hong-Wen Jiang, Guo-Ping Guo, Bao-Bao Chen, Xuedong Hu, Ming Xiao, Gang Cao, Bao-Chuan Wang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Spin states Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics media_common.quotation_subject Semiconductor nanostructures FOS: Physical sciences 02 engineering and technology Electron 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences Asymmetry Blockade Qubit 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Condensed Matter::Strongly Correlated Electrons Double quantum 010306 general physics 0210 nano-technology Coherence (physics) media_common |
| DOI: | 10.48550/arxiv.1610.04940 |
| Popis: | Asymmetry in a three-electron double quantum dot (DQD) allows spin blockade, when spin-3/2 (quadruplet) states and spin-1/2 (doublet) states have different charge configurations. We have observed this DQD spin blockade near the (1,2)-(2,1) charge transition using a pulsed-gate technique and a charge sensor. We then use this spin blockade to detect Landau-Zener-St\"uckelberg (LZS) interference and coherent oscillations between the spin quadruplet and doublet states. Such studies add to our understandings of coherence and control properties of three-spin states in a double dot, which in turn would benefit the explorations into various qubit encoding schemes in semiconductor nanostructures. Comment: 14 pages, 4 figures, and Supplementary Materials |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|