On Thursday NEC put out a press release announcing the “world’s first controllably coupled qubits.” See here for the abstract of the accompanying Science paper by Niskanen et al. (unfortunately the full text requires a subscription). NEC’s announcement led to the usual fluffified popular articles; see here, here, and here for example. But to satisfy Geordie Rose’s curiosity, my hype-o-meter has not yet reached D-Wave levels, for three reasons.
- These claims haven’t garnered nearly as much ‘quonfusion’ as D-Wave’s in the popular press.
- In this case there is a peer-reviewed paper.
- There’s no claim here about solving NP-complete problems, or indeed about asymptotic complexity at all. The sole claim to originality has to do with “tunable two-qubit couplings,” and I’m not at all well-placed to evaluate it.
Anyway, I thought I should at least mention this work, in the hope that commenters more knowledgeable than I am will weigh in on its significance. Eternal vigilance is the price of quantum computing research.
OK, on to the second breakfast link. Bill Gasarch has reviewed my blog for SIGACT News (scroll down to page 15), together with Lance Fortnow’s and Luca Trevisan’s. Favorite quotes:
Lance is Walter Cronkite. Scott is Stephen Colbert.
The name of the blog, ‘Shtetl-Optimized’ does not really say what it is about. With this in mind one can never say Scott has gone ‘off topic’ since its [sic] not clear what the topic should be.
Incidentally, an uncharitable person might suspect a slight conflict of interest in Bill reviewing Lance’s blog, seeing as Bill now writes Lance’s blog. But Bill assures us that he reviewed the blog before taking it over.