Recent comments from SciRate

Alexander Belov Mar 15 2014 22:04 UTC

In the second version, all missing pieces of the first version are proven, and an explicit construction of the adversary matrix for the collision and the set equality problems is given.

Man-Hong Yung Mar 10 2014 10:14 UTC

I enjoyed reading this paper, which makes an interesting connection between quantum state preparation and Bayesian network; the latter is something I am not familiar with. Although this paper is well written, there is some overlap with the existing literature not covered, in particular the problem o

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Man-Hong Yung Mar 10 2014 09:41 UTC

This is a very serious study of the performance of quantum computation for quantum chemistry. I personally believe that quantum chemistry is the "killer application" for quantum simulation; it involves much smaller scale quantum systems, compared with condensed matter systems.

I have one suggestio

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Man-Hong Yung Mar 10 2014 09:06 UTC

I have no more excuse for not learning IPython for scientific-graph plotting. Thanks Noon!

Noon van der Silk Mar 08 2014 04:19 UTC

For fun, I created the following IPython notebook replicating the graphs in this paper: http://nbviewer.ipython.org/github/silky/paper_workings/blob/master/arxiv_1403.0069.ipynb.

(Actually, it's on the sagemath cloud, where if you have an account you can probably edit it - https://cloud.sagemath.

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Marco Piani Mar 07 2014 14:46 UTC

The author writes "My ideas towards the proof of these results in this paper originates from the observations made by Carlen in [13]". Actually, the first main result is a direct corollary of theorem 2.3 of [13], in the sense of directly applying theorem 2.3 of [13], which regards monotonicity of re

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Frédéric Grosshans Mar 05 2014 10:03 UTC

I read this paper as an appendix of an unwritten Fantasy novel, where a 21st century cosmologist is trapped in an alternate Aristotelian 13th century universe ! Thanks for the nice read !

Marco Tomamichel Jan 30 2013 02:49 UTC

Unofficial winner of the Best QIP 2013 Rump Session Talk award!

Marco Tomamichel Feb 05 2013 04:12 UTC

From their webpage: "If you have been dreaming of getting published, we might be able to help."

Marco Tomamichel Jun 25 2013 05:41 UTC

This is a very nice solution to our (very recent) conjecture. We have in the meantime solved the remaining conjectures and will post an update soon.

Nick Menicucci Oct 31 2013 02:49 UTC

Thanks, Seiji.

Yes, the required squeezing is quite high, and GKP states are really challenging to make. But you got the point: a threshold exists.

Therefore, with confidence, theorists can now work toward designing better protocols (which reduce the threshold and employ more practical encodin

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Steve Flammia Aug 27 2012 17:49 UTC

I'm very impressed with this experiment! I have a question about how the parameter \epsilon was chosen for the compressed sensing estimator. What was the exact value that was chosen, and how was it chosen in relation to the data?

I'm also very pleased to see the compressed sensing estimator outp

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Steve Flammia Feb 01 2013 02:37 UTC

We will look back at this day in history as the moment we hit "peak discord".

Steve Flammia Feb 05 2013 05:43 UTC

By the way, Daniel, you are also listed as an editor for "Quantum Physics Letters", a "journal" by the same company:
http://naturalspublishing.com/show.asp?JorID=2&pgid=6

Steve Flammia Feb 05 2013 22:31 UTC

Here's our man: http://www.abdelaty.com/pup.htm
The links on the left are in Arabic, but some of them still have English text when you click through.

He also has an El Naschie-like photo montage of himself posing with famous scientists:
http://www.abdelaty.com/pic.htm

He is a prolific autho

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Steve Flammia Feb 11 2013 06:41 UTC

The citation statistics that he quotes on the last page are very interesting and it's worth taking a minute to read those two paragraphs.

Steve Flammia Feb 12 2013 10:05 UTC

I don't know about fault tolerant quantum computing, but here is an RMP on quantum algorithms: http://rmp.aps.org/abstract/RMP/v82/i1/p1_1

Steve Flammia Apr 17 2013 04:42 UTC

This paper doesn't seem to contain any new results. It is trivial that the Hilbert space of M modes with N photons has dimension (M+N-1)! / N! (M-1)!, and that this dimension is exponentially large when M = N. It is also well known that direct simulation in the Schrödinger picture and Heisenberg pic

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Steve Flammia May 29 2013 02:42 UTC

Don't worry, SIC-o-philes, the full conjecture is still open.

Steve Flammia Oct 14 2013 09:07 UTC

I'm also curious about this point. From my understanding of James' new decoder, it has the following additional difference from the Bravyi-Haah RG decoder, namely that it has a preferred order in how the errors are clustered. This is because the decoding algorithm scans in lexicographic order throug

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Steve Flammia Jan 10 2014 08:01 UTC

This paper is an important first step towards making numerical and computational studies more easily checkable and reproducible. Very interesting stuff.

David Elkouss Feb 01 2013 11:41 UTC

(after some googling) It can be checked here:

http://naturalspublishing.com/ContIss.asp?IssID=100

In fact it seems that it's the only article that made it to Vol 1. No. 1

Noon van der Silk Jun 20 2013 07:29 UTC

This paper seems pretty interesting, really. (In how it would relate to the algorithm of Shor). Does anyone know more about this work? Is it possible to improve the restriction on the characteristic size? Is that even an important restriction?

Noon van der Silk Jun 22 2013 01:22 UTC

Thanks Anthony and Juan.

There's another blog post on this here: http://ellipticnews.wordpress.com/2013/06/21/quasi-polynomial-time-algorithm-for-discrete-logarithm-in-finite-fields-of-smallmedium-characteristic/.

Noon van der Silk Sep 04 2013 23:55 UTC

Part of the standard equipment for playing bosonic baseball? It's a good game, but it's hard to know who's playing.

Noon van der Silk Oct 02 2013 05:41 UTC

This is cool!

Noon van der Silk Nov 15 2013 00:02 UTC

> BTW, is this a record high on Scirate?

Not yet. Click the "1y" link, for example, to see the highest scited of the year ...

https://scirate3.herokuapp.com/?range=365

Noon van der Silk Jan 10 2014 16:26 UTC

Interestingly, another thematically-similar paper popped up today - https://scirate3.herokuapp.com/1401.2134 (posting the link here as I assume not many people are subbed to cs.DL)

Mohammad Bavarian Dec 18 2013 16:49 UTC

This looks like a wonderful paper: the questions are simple to state and natural, and the direction looks new and exciting.
From what I recall, there has been some concern among people that QPCP conjecture is hard to prove (or may be even false), because we have not identified the correct analogue

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Gerardo Adesso Jan 09 2014 01:49 UTC

Aram an answer to your question (quantitative setting) can be found here
http://arxiv.org/abs/1309.1472

Marco Piani Feb 01 2013 07:38 UTC

What journal is that (Quant. Inf. Rev.)? First volume, first number, first pages... Is it his own journal, freshly established?

Marco Piani Feb 01 2013 07:55 UTC

The framework is quite restricted/restrictive (only two qubits, a particular encoding, disallowing everything but qubit measurements in the "classical" case) and that is probably the reason why everything fits so well together. But I believe the approach goes in one interesting direction: taking adv

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Marco Piani Feb 01 2013 13:47 UTC

Thanks, I should have used quotation marks in my one lazy attempt at Google...

Although the editorial board looks very good, I am afraid the journal started with the wrong step.

Marco Piani Sep 06 2013 20:01 UTC

I believe the results presented in this paper are very similar or very closely related to those given in the appendix/supplementary material of http://arxiv.org/abs/1203.1268 in particular Theorem 3

Marco Piani Sep 07 2013 03:13 UTC

At a closer inspection, although some of the equations and the framework are very similar, what considered here and in http://arxiv.org/abs/1203.1268 is quite different. In http://arxiv.org/abs/1203.1268, no initial entanglement is supposed to exist, and the structure of the states is not as general

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Mark M. Wilde May 28 2013 07:48 UTC

This result already follows from results of Beigi and Shor http://arxiv.org/abs/0709.2090 (not cited in this paper) by employing the Koashi-Winter relation.

Mark M. Wilde Jun 03 2013 12:08 UTC

Very nice how the math in the abstract renders on Scirate! I wonder if the arXiv will catch up...

Mark M. Wilde Aug 01 2013 17:20 UTC

This paper was recently accepted into PRA. I was a referee for it and the comments in my final report were left as optional by the editors after it was discovered that I coauthored a paper on a similar topic. Since the final published version of the paper still contains some problems and the authors

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Mark M. Wilde Sep 04 2013 23:12 UTC

What is a bosonic bat?

Dave Bacon Jan 21 2013 01:53 UTC

It would be interesting to hear machine learners view of this paper. Any AI folks lurking around scirate care to comment?

Dave Bacon May 10 2013 02:53 UTC

This paper only considers two party entanglement. If you move to three parties, then the entangled states in the GK theorem include the GHZ state and the measurements that you need in order to violate Bell inequalities for these states. Thus the argument in this paper seems to fall apart for n>2 q

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Dave Bacon Aug 02 2013 04:16 UTC

After equation (17), I believe the author means to measure in the x-basis?

Dave Bacon Nov 02 2013 02:55 UTC

I somehow missed Eric's Ph.D. thesis. For those who are interested it is: http://arxiv.org/abs/quant-ph/0503169

Juan Miguel Arrazola Feb 12 2014 16:43 UTC

This is a very useful exposition and classification of entanglement witnesses, which I expect will prove very useful for those of us working in the field.

I must note that for future work, you may be interested in considering nonlinear witnesses as well, as they provide a generalization of linea

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Ben Sep 04 2012 08:37 UTC

Please consider the environment before printing this full version. :)

Martin Aulbach Feb 11 2014 08:20 UTC

Very impressive. I wonder if this method can be extended to electrons, to develop an entanglement-enhanced electron microscope?

Han-Hsuan Lin May 13 2013 19:00 UTC

GHZ state is separable if you trace out any subsystem. Therefore I don't think you can violate Bell inequality with GHZ state.

Kevin Young Oct 04 2013 04:18 UTC

Hi John,

Your comment made me reread our abstract, which I now see to be potentially misleading. It will need to be clarified in a future version. Thanks for that! That said, I would summarize the main points of the article thusly:

1. Adiabatic quantum computers/annealers/optimizers are robu

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Zoltán Zimborás Nov 26 2013 03:02 UTC

Nice! :)

Min-Hsiu Hsieh Nov 14 2013 23:46 UTC

Wow, 33 cites. Congratulations to Toby and Ashley. Very nice results. BTW, is this a record high on Scirate?