Spin-Based Quantum Dot Qubits

摘要: Spin-based electronics in low dimensional structure (LDS) e.g. quantum wells (QWs) and dots (QDs) (especially QDs) have recently attracted a lot of interest for applications information technology (Burkard et al., 1999; Imamoglu Nielsen & Chuang, 2000). Two-dimensional (2-d) QDs (Baruffa 2010; Bertoni 2005; Fessatidis Foulkes 2001; Hayashi 2004; Hu Sarma, 2000; Rasanen 2003; Simserides 2006; 2007; Stano Fabian, Thorwart Witzel 2007) self-assembled (SAQDs) (Artus Banyai Koch, 1993; Fujisawa 1998; Lee Pryor 1997; Pryor, Flatte, 2003) among other heterostructures been suggested constructing bits (qubits). Quantum computing architecture mainly uses the properties related to charge spin confined carriers, others. Thus, carrier relaxation via emission phonons (Khaetskii Nazarov, Mohanty, Stavrou Hu, Stavrou, Woods 2002) light polarization interplay with spin-polarized states within (Chye 2002; 2008; 2009), which are electrically injected into QDs, special importance technology.