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Quantum physics

Cruise control for a qubit

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Continuous feedback control — monitoring a system and adjusting its dynamics — is widely used to keep systems 'on track'. This approach has now been used to maintain the cycling of a quantum bit almost indefinitely. See Letter p.77

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Figure 1: Locking cycles to an external clock.

References

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Authors and Affiliations

  1. Howard M. Wiseman is at the Centre for Quantum Computation and Communication Technology (Australian Research Council), and the Centre for Quantum Dynamics, Griffith University, Brisbane 4111, Australia.,

    Howard M. Wiseman

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  1. Howard M. Wiseman
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Correspondence to Howard M. Wiseman.

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Wiseman, H. Cruise control for a qubit. Nature 490, 43–44 (2012). https://doi.org/10.1038/490043a

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