Coherent pseudo-spin dynamics in Aharonov–Bohm interferometer containing laterally coupled double quantum dots

✍ Scribed by Toshihiro Kubo; Yasuhiro Tokura; Seigo Tarucha

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 157 KB
• Volume: 40
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/j.physe.2007.08.069

✦ Synopsis

We theoretically study the coherent pseudo-spin dynamics in Aharonov-Bohm interferometer containing laterally coupled double quantum dots (DQDs). We propose a novel blockade mechanism in laterally coupled DQDs suffering from a quantum interference effect. The leakage current due to the coherent pseudo-spin dynamics under such a blockade condition is examined using the nonequilibrium Green's function method.