Peter Wittek

I cannot reproduce the error on 64-bit Linux with 32GB of RAM. R is insanely inefficient with memory use: during the conversion, it peaks around 19GB. Once the conversion is...

It would help a lot if you gave an [mcve](https://stackoverflow.com/help/mcve). Thanks.

This is a good solution. Would you mind creating a PR to replace the single call to cdist? Thanks.

This should work, but bear in mind that you will have 268 component planes (assuming you mean features by columns).

From Roger: I guess it depends what you mean by "improvement". Having an extra parameter, be it a transverse field or anything else, should always be expected to increase the...

Yes, this looks like a typo. On top of p.12 (v2 of the manuscript) and in appendix E.3, they argue that the mean-field approximation prepares the state with a large...

This might not be so simple after all. We are trying to understand the conditions in which a mean-field approximation is efficient and it is not quite clear. In E.5...

@cgogolin, you read this paper too, do you have any insight on the relationship between the graph topology and the mean-field approximation? I remember you dismissed using this approximation in...

I already tried emailing them with no success.

There is a lot more on this topic in a [follow-up paper](https://arxiv.org/abs/1612.05204), which in turn also cites [Chowdhury and Somma, 2016](https://arxiv.org/abs/1603.02940), and other efficient general protocols to prepare a thermal...