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70 Example Questions (13 closed)

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up vote 10 down vote

added by Henry WH Hack v3.0a Aug 23 '17 at 22:17

up vote 10 down vote

added by snulty Sep 11 '17 at 23:52

I was thinking of something along the lines of Nielsen and Chuang's chapter 7. Roughly something about two level systems that retain quantum effects, ability to create initial states, and implement operations etc. Seemed like a question that might be asked. – snulty Sep 11 '17 at 23:56

up vote 10 down vote

added by kenorb Sep 21 '17 at 10:31

up vote 10 down vote

added by Henry WH Hack v3.0a Sep 26 '17 at 16:06

up vote 10 down vote

added by Chan Bae Oct 1 '17 at 22:56

up vote 7 down vote

added by Mithrandir24601 Aug 3 '17 at 22:32

up vote 5 down vote

added by blalasaadri Jun 4 '17 at 11:56

up vote 5 down vote

added by kenorb Jul 31 '17 at 22:31

up vote 1 down vote

added by oldMammuth Sep 1 '17 at 16:23

Just in terms of notation is q[0] just some qubit, and x a bit flip operation on it for example? – snulty Sep 11 '17 at 23:59

q[0] is the first qbit of the register q (like the AX, BX, ... registers in MASM/NASM) and x is a flip, if I understood correctly, because it performs a NOT operation... but so does y and the u3(pi,0,0) where pi is the radius of turning the qbit pi = 180° = flip upside-down. But as to the real difference between these operation, I genuinely don't know: I'm a software developer, didn't take classes on quantum mechanics, but I wish to learn more. If this place gets accepted on stack exchange I think that many programmer will want to get in touch with the subject even not knowing the mechanics... – oldMammuth Sep 12 '17 at 6:01

I think it's a good question, I was just making sure I understood the notation :) I'm sure when there's a question body available it would be helpful! – snulty Sep 12 '17 at 9:15

up vote 0 down vote

added by snulty May 12 '17 at 20:29

up vote 0 down vote

added by Henry WH Hack v3.0a Sep 20 '17 at 17:41

closed as duplicate of Can a quantum computer run an operating system? by Robert Cartaino Nov 29 '17 at 16:06

This question covers exactly the same ground as another question in this proposal.

up vote 0 down vote

added by Arunav MAHESHWARI Oct 24 '17 at 11:15

closed as duplicate of Does creating a quantum algorithm that runs in polynomial time for an NP-complete problem prove P=NP? by Robert Cartaino Nov 29 '17 at 16:08

This question covers exactly the same ground as another question in this proposal.

The first part to this appears to be a duplicate of this question on whether quantum computers could prove P=NP. I'm not sure what you mean by the second part of your question - the significance and difference of what? – Mithrandir24601 Oct 24 '17 at 13:31

up vote 0 down vote

added by glance Dec 5 '17 at 16:49

I would phrase it as "How might a boson sampling device...". – Itamar Green Dec 6 '17 at 9:10

up vote 0 down vote

added by glance Dec 5 '17 at 16:56

up vote 0 down vote

added by glance Dec 5 '17 at 16:56

up vote 0 down vote

added by glance Dec 5 '17 at 17:01

up vote -1 down vote

added by kenorb Sep 11 '17 at 10:44

up vote -1 down vote

added by Henry WH Hack v3.0a Sep 22 '17 at 16:10

up vote -1 down vote

added by Dhruv Saxena Oct 14 '17 at 22:52

Question looks unclear and has cyclic arguments. Please specify what you exactly want to simulate using what. – Aniket Oct 24 '17 at 6:16

up vote -1 down vote

added by Aniket Oct 17 '17 at 16:22

I think this could be added to by even asking what kind of information would a quantum computer need to store. Is some data required to be stored classically and the quantum computer mainly used for computational purposes - or maybe that would be a separate question – snulty Oct 30 '17 at 22:12

up vote -1 down vote

added by Maxim Oct 18 '17 at 7:19

>Or would there really be any gain in doing it? Like would there be much benefit if it could do so. – snulty Oct 30 '17 at 22:10

up vote -1 down vote

added by Itamar Green Nov 4 '17 at 9:04

up vote -2 down vote

added by wdudhnath Feb 17 '17 at 15:05

closed as too localized by Nij, wythagoras, Chenmunka, Helmar, tuskiomi Jul 7 '17 at 18:25

This question is unlikely to ever help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet.

This is changing too fast to be useful. – wythagoras Feb 20 '17 at 18:22

@wythagoras. While in principle it could become outdated, I wouldn't mind someone pointing out examples of which gates have been implemented and how. Just an overview, doesn't have to be deeply detailed. – snulty Mar 8 '17 at 9:55

up vote -2 down vote

added by 41041729 Apr 12 '17 at 14:01

closed as duplicate of Are Cryptographic hash functions quantum secure? How is quantum computer going to effect the modern Cryptographic primitives? by Robert Cartaino Sep 8 '17 at 16:29

This question covers exactly the same ground as another question in this proposal.

Maybe reword to something like "What influence could quantum computing have on Cryptography?" or "Which kinds of Cryptography are in danger through quantum computing?". A "How important is X"-question can only be answered with "very important", "somewhat important", "not important" or something of the kind - which isn't helpful. – blalasaadri Apr 29 '17 at 0:12

While this may not be closed as an "exact duplicate" on the actual site, for the purpose of evaluating the scope of this proposal, combining questions all asking, essentially, how quantum computing affects cryptography helps assure we have a sufficient breadth of subject matter to actually create this site. – Robert Cartaino Sep 8 '17 at 16:30

up vote -2 down vote

added by EvgeniyZh Oct 19 '17 at 16:02

This is extremely broad - entire books have been written on this subject, so it would be helpful if you could narrow down the question a fair bit as there are lots of interesting topics within 'error correction' – Mithrandir24601 Oct 19 '17 at 23:19

I think at this level of proposing questions you could just modify this question to "What is X in quantum error correction ", and maybe add "How is it implemented?", or to "I have a problem with Y in the error correction circuit of X". I can't think of what the word instead of circuit can be in the above. – snulty Oct 30 '17 at 22:09

up vote -3 down vote

added by wdudhnath Feb 17 '17 at 14:59

closed as too localized by Nij, wythagoras, blalasaadri, Helmar, tuskiomi Jul 7 '17 at 18:25

This is trying to hit a moving target. The latest as I write my answer, could be deprecated by the time you read it. Generally a bad concept for a knowledge store, which is the goal of SE sites. – RandomThought Jun 25 '17 at 2:31

up vote -3 down vote

added by HowToCompute Feb 20 '17 at 17:36

closed as not constructive by Chenmunka, Nij, John Militer, tuskiomi, Helmar Jun 24 '17 at 10:42

This question is not a good fit to our Q&A format. We expect answers to generally involve facts, references, or specific expertise; this question will likely solicit opinion, debate, arguments, polling, or extended discussion.

I don't think a close vote on this is helpful. It's a fairly legitimate 'reference request' (called that on other sites). I think there should be at least one standard one which can be referred to, maybe make it a community wiki. – snulty Mar 8 '17 at 9:57

any question that asks for "the best" is almost unilaterally nuked as POB everywhere on Stack Exchange. This is not a reference request, it's a poll or list question, and those are two very different things. – Nij Mar 10 '17 at 9:00

@Nij, To be fair there's no question to accompany the title. I would've taken best to be a turn of phrase for 'good'. I mean no one is going to ask "What are some terrible books to learn about X". Would you nuke all reference requests if they asked for "good" books, because maybe people will disagree on what counts as a good book. Or would you prefer the question as phrased by EvgeniyZh? – snulty Mar 17 '17 at 1:59

up vote -3 down vote

added by EvgeniyZh Mar 3 '17 at 17:28

Maybe edit to "what are some common problems where QC provides a speedup?" – heather Mar 22 '17 at 22:08

up vote -4 down vote

added by EvgeniyZh Mar 13 '17 at 20:01

closed as too localized by blalasaadri, tuskiomi, Helmar, Henry WH Hack v3.0a, Itamar Green Jul 21 '17 at 7:58

up vote -6 down vote

added by wdudhnath Feb 17 '17 at 14:56

closed as not a real question by Nij, Chenmunka, heather, KOB, blalasaadri Apr 29 '17 at 0:09

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form.