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The properties of semiconductor quantum dots can now be controlled down to the level of single electrons and spins. These solid-state 'artificial atoms' have inspired scientists to look at them as possible building blocks for realizations of quantum computers, with unexpected consequences.
Semiconducting quantum dots have been extensively investigated with the idea of using single spins for quantum computing. Whereas access to single electrons and their spins has become routine, the challenges posed by nuclear spins remain ever present.
In the Commentary 'Unidirectional light propagation at exceptional points' (Nature Mater. 12 175–177; 2013), the volume number in ref. 6 was incorrect; the reference should have read 'Feng, L. et al. Nature Mater. 12, 108–113 (2013)'. This error has been corrected in the HTML and PDF versions,...
Discrepancies in the glass-forming ability of metallic glasses have been explained in terms of the presence of local structural features in the liquid. Findings from molecular dynamics simulations now show that the structure of the crystal/liquid interface may play a bigger role than previously...
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