Coherent control and interplay of three-electron spin states in a triple quantum dot

Details Coherent control and interplay of three-electron spin states in a triple quantum dot Coherent control and interplay of three-electron spin states in a triple quantum dot

2011-06-17

arxiv.org/abs/1106.3518v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 9 figures

Scientific paper

Spin qubits involving one or two spins have emerged as potential building blocks for quantum information processing applications, resulting in many double quantum dot (DQD) studies. Coherent control of a two-electron spin qubit close to the singlet/triplet (S/T+) anticrossing through Landau-Zener-St\"uckelberg (LZS) oscillations has been studied theoretically and demonstrated experimentally in DQDs. Recent advances with triple quantum dot (TQD) technology have suggested additional advantages, such as their potential for encoding quantum information, that may soon be possible. Towards these goals we demonstrate, for for first time, the coherent manipulation of three-particle spin states in a TQD where all three spins play a role.

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