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Quantum information

Holes avoid decoherence

Could holes in semiconductor quantum dots be a more appealing alternative to electrons for realizing stable and scalable solid-state spin qubits for quantum information processing? The latest findings detailing two coupled dots and improved coherence times suggest that the answer may be yes.

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Figure 1: Schematic of a p-type GaAs diode comprising a pair of coupled InGaAs SAQDs.
Figure 2: Experimental set-up and control scheme.

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Correspondence to Alexander Tartakovskii.

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Tartakovskii, A. Holes avoid decoherence. Nature Photon 5, 647–649 (2011). https://doi.org/10.1038/nphoton.2011.262

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