Coherent manipulation of electronic States in a double quantum dot.

By T. Hayashi, T. Fujisawa, H. Cheong, Y. Jeong, Y. Hirayama. Physical Review Letters, 2003

608 citations recorded by the source corpus.

We investigate coherent time evolution of charge states (pseudospin qubit) in a semiconductor double quantum dot. This fully tunable qubit is manipulated with a high-speed voltage pulse that controls the energy and decoherence of the system. Coherent oscillations of the qubit are observed for several combinations of many-body ground and excited states of the quantum dots. Possible decoherence mechanisms in the present device are also discussed.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/d7167266fd84f4d436561e2806838c3a60506cbd

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

1 / f noise: Implications for solid-state quantum information (2013, background): “Coherent control of a GaAs charge qubit has been demonstrated (Fujisawa et al., 2004; Hayashi et al., 2003), along with correlated two-qubit interactions (Shinkai et al., 2009).”
Coherent Conversion Between Microwave and Optical Photons—An Overview of Physical Implementations (2019, unknown): “nz charge qubits in various material systems [6, 7].”
NMR techniques for quantum control and computation (2004, background): “Larmoroscillations initiated by a kick have been observed recently in a variety of systems, including those driven resonantly mentioned earlier, and in addition a system of charges in coupled quantum dots s Hayashi et al. , 2003 d .”