• In a Nutshell - Quantum Computers
    60 replies, posted
[video=youtube;JhHMJCUmq28]http://www.youtube.com/watch?v=JhHMJCUmq28[/video]
Been waiting for something like this from them.
Glad he stresses the importance of the gear wars.
Neat
And somehow I'm still a little confused on how they can work with something that gives what seems like a random output when measured.
[QUOTE=Snickerdoodle;49272345]And somehow I'm still a little confused on how they can work with something that gives what seems like a random output when measured.[/QUOTE] It's not random. With a good enough understanding of quantum physics and probability theory they could make it work
I'm now currently waiting for some one to make a pulp sci-fi about sentient computer robots powered by quantum physics that can bend space and time.
Wow.. Like i did somewhat understand what was going on but it sounds so sci-fi for me. Especially the parts that it can basically tell any other bit to do the same thing no matter how far.
If all possible results exist at the same time, how in the fuck can we pick the one we need
As long as it will help stream my Ultra HD 4K Resolution Hentai, I'm okay with this. If it doesn't work that way, then it's useless tech and is a waste of everyone's time!!! [editline]8th December 2015[/editline] I fucking love their videos. I got confused a little bit, not gonna lie, but it was still super interesting
[QUOTE=damnatus;49274431]If all possible results exist at the same time, how in the fuck can we pick the one we need[/QUOTE] I think the trick is in making the results that we don't want cancel each other out or something
[QUOTE=damnatus;49274431]If all possible results exist at the same time, how in the fuck can we pick the one we need[/QUOTE] Maybe it's just a case of "ok this somehow works, let's just not touch it anymore" and then they made up explanations for it because they're too embarrassed to admit that they have no idea v:v:v
[QUOTE=edberg;49272184]Glad he stresses the importance of the gear wars.[/QUOTE] The thing people don't realize about the gear wars is that it was never really [i]about[/i] the gears at all.
I've always felt that maybe I'd never end up being an old person who isn't savvy with the latest technology, but imagine future generations growing up and learning quantum computing as soon as they begin school. This might be the shit that flies over our heads
I like how the Quantum gate they use is a Stargate.
[QUOTE=darth-veger;49274254]Wow.. Like i did somewhat understand what was going on but it sounds so sci-fi for me. Especially the parts that it can basically tell any other bit to do the same thing no matter how far.[/QUOTE] The basic logic behind that specific problem is actually pretty simple. It runs on the idea that in certain systems, you can immediately deduce what state some faraway part is in as long as you know the state of "your" part and you know how the other part would react to the state "your" part is in. For example, imagine if I took a can of beans, emptied its contents into a closed box and then threw the can into another closed box. Say I then shuffled both boxes around and gave you one of them. You don't know whether I gave you a box of trash or a box of mushy beans, but you do know that I had to give you one or the other (this is the part where the can/beans are in a "superposition" where they're theoretically both at once). Therefore, once you open and observe your box to find a pile of sludgy beans, you immediately know that the other box has an empty can in it. You could be a mile and a million years away, but as soon as you open your specific box you'd still know that somewhere in a forgotten land, there exists a sealed box with an empty tin can inside it. Obviously, it's actually a lot more complicated than that. There's been whole studies done to disprove the idea that "the can was always in that box and the beans were always in yours, you just didn't know which was which" and studies on how one part of the system "knows" what state its companion part is in. But at its basest form, entanglement gets p fukken simple.
Sooo what would a gaming Quantum Computer look like? Would it be able to impact gaming?
[QUOTE=Pvt. Martin;49276569]Sooo what would a gaming Quantum Computer look like? Would it be able to impact gaming?[/QUOTE] but can it run crysis
[QUOTE=Pvt. Martin;49276569]Sooo what would a gaming Quantum Computer look like? Would it be able to impact gaming?[/QUOTE] Way more efficient and accurate physics of course, and I'd presume it would be able to calculate things much faster and much more efficient ly, as for graphics, I dunno.
[QUOTE=Pvt. Martin;49276569]Sooo what would a gaming Quantum Computer look like? Would it be able to impact gaming?[/QUOTE] Online gaming does spring to mind. How can instantaneous communication across any distance lag? Or would that require setting up specific paired components for each computer?
that thing at 2:36 pure hilarity
I think the best thing they did in this video was admit that there's a massive amount of uncertainty over what we can reasonably do with quantum computers and to what extent they'll replace traditional ones, as opposed to the news articles written by someone who read 3 pages in a science text book once relating to quantum mechanics then decided to take their readers on a wild journey through their imagination :v:
[QUOTE=Jund;49276842]but can it run crysis[/QUOTE] Quantum Doom here we come
[QUOTE=Viper_;49277166]Online gaming does spring to mind. How can instantaneous communication across any distance lag? Or would that require setting up specific paired components for each computer?[/QUOTE] I'm pretty sure it's not actually possible, wouldn't it violate casualty?
[QUOTE=WhyNott;49277562]I'm pretty sure it's not actually possible, wouldn't it violate casualty?[/QUOTE] It violates my bullshit meter but then so does all of Quantum Physics.
Now I have a small idea of what Quantum computing is, nice. Before this, trying to read up about it just made my head hurt, this guy explained it nicely.
Something this video doesn't quite stress enough is that quantum computers are, at the current time and probably for the foreseeable future, only good at solving extremely specific types of problems. This video (by the University of Birmingham) is a few years old now, but it is a very good supplement to the one in OP. It shows the kind of problems you'd actually want to use a Quantum computer for, and why they just aren't practical for consumer use. [video=youtube;VyX8E4KUkWw]https://www.youtube.com/watch?v=VyX8E4KUkWw&feature=youtu.be[/video] These are called [i]optimization problems[/i]; trying to find the best solution from all pheasible solutions. Examples include: the traveling salesman problem, reverse image searches, database queries, and things like that. Quantum computers are not faster than conventional computers at solving other types of problems. Because of the specialized nature of Quantum computers, and the environments they require to operate in, their future seems to lie not with consumers, but with large companies and organizations that need to process a great deal of data, like Google and NASA. Speaking of, here's a ~dramatic~ video about Google and NASA's quantum computer: [video=youtube;CMdHDHEuOUE]https://www.youtube.com/watch?v=CMdHDHEuOUE&feature=youtu.be[/video]
I'm doing a masters in Quantum Computing at the moment and it's a pretty accurate video, doesn't really go into any depth of the mathematics though (probably rightly). If anyone's interested in a quick course, these vids are great: [video=youtube;X2q1PuI2RFI]https://www.youtube.com/watch?v=X2q1PuI2RFI&list=PL1826E60FD05B44E4[/video]
i should've paid more attention in school
Don't Hug Me I'm Scared reference at :06.
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