Singlet-Triplet Dephasing in Asymmetric Quantum Dot Molecules |
| Ł. Marcinowski a, K. Roszaka,b and P. Machnikowskia
a Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland b Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, 12116 Prague, Czech Republic |
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| We discuss pure dephasing of singlet-triplet superpositions in two electron double quantum dots due to elastic phonon scattering. We generalize our previous results to a system built of two non identical dots. We show that the asymmetry must be very strong in order to considerably affect the dephasing rate. |
| DOI: 10.12693/APhysPolA.116.874 PACS numbers: 73.21.La, 03.65.Yz, 72.10.Di, 03.67.Lx |