Pierwszy elektroniczny procesor kwantowy
- Dodano: 30 June 2009
- Wprowadził: jabol
- Komentarze: 85
Naukowcom na Uniwersytecie Yale udało się stworzyć pierwszy na świecie działający procesor kwantowy o czasie pracy mierzonej w mikrosekundach. Układ jest w pełni elektroniczny i nadprzewodzący. Zdołali wykonać na nim kilka prostych algorytmów.
Naukowcom udało się stworzyć dwa kubity (ang. qubit – quantum bit), złożone w tym przypadku z miliardów atomów aluminium. Cechą kubitu jest możliwość znajdowania się w dowolnej superpozycji dwóch stanów (np. dla elektronu o spinie 1/2). Efektem złożenia kubitów z miliardów atomów jest możliwość znajdowania się danego kubitu w wielu superpozycjach, co skutkuje zwiększeniem pamięci oraz mocy obliczeniowej.
Eksperyment polegał na połączeniu dwóch kubitów szyną kwantową, którą były fotony przenoszące informacje. Naukowcom udało się wykonać w ten sposób kilka prostych algorytmów. Wcześniej przeszkodą był czas utrzymania kubitów w pożądanym stanie dłużej niż nanosekunda. Teraz czas ten wynosił mikrosekundy, co pozwoliło na przeprowadzenie kilku niewymagających testów.
Kolejnym krokiem będzie dalsze wydłużenie czasu, w którym kubity będą w stanie zachować swój stan kwantowy oraz dodanie do szyny kwantowej kolejnych kubitów, co spowoduje wykładniczy wzrost wydajności.
W źródle podlinkowany materiał w języku angielskim. Artykuł naukowców na temat odkrycia ukazał się w czasopiśmie Nature.
Więcej informacji: http://www.tgdaily.com/content/view/43017/135/
Znalazłeś literówkę? Zgłoś ją używając formularza!
Jeśli uważasz, że ten nius jest nieobiektywny, przedstawia nieprawdziwe wydarzenie, jest spamem lub nie spełnia standardów serwisu, napisz raport.
Niusy na podobny temat:
Komentarze są prywatnymi opiniami dodających je osób. Prosimy o zachowanie kultury wypowiedzi. Komentarze obraźliwe oraz obniżające poziom serwisu będą usuwane. Więcej w regulaminie komentowania.
85 komentarzy
Wszystkie autorskie niusy w serwisie publikowane są na licencji Creative Commons Uznanie autorstwa 2.5 Polska.
Mam tylko nadzieje, ze nie nazwa tego Skynet.
Pierwszy komputer który będzie z tym stabilnie pracował nazwą T-1
A największym zagrożeniem będzie chyba "Cyberdyne"
"Naukowcom udało się stworzyć dwa kubity – (ang. qubit – quantum bit) sztuczne atomy (bity kwantowe), złożone w tym przypadku z miliardów atomów aluminium."
dwa "sztuczne atomy" zlozone z miliardow atomow aluminium? To zdanie nie ma sensu…
Artykul jest juz dostepny na stronie nature.com (http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature08121.html).
Na stronie Nature trzeba niestety zapłacić, jeśli nie posiada się abonamentu. Ale jest pre-print na Arxivie:
http://arxiv.org/abs/0903.2030v2
dziwne… Jeden qbit to zawsze jest 1 cząstka. Czyli zazwyczaj jeden atom, ewentualnie para atom-dziura w sieci kryształu, albo jednoatomowy jon.
Jeżeli coś się składa z miliardów atomów, to fizyka kwantowa przestaje działać, za to wchodzimy w obszar fizyki klasycznej.
To na pewno jest procesor kwantowy? Nie wierzę, żeby do obliczeń kwantowych wykorzystali kondensat. Zbyt trudno go wytworzyć i utrzymać.
Niekoniecznie, jednym atomem ciężko się operuje (obserwuje, zmienia, etc..). Jest wiele metod pozwalających wytworzyć pojedynczy qbit z wielu atomów i odczytywać jego stan masowo (uśredniając).
Zrobić jeden qbit to żaden problem, zrobić dwa i połączyć je w sprzężoną parę qbitów to już sukces. Wprawdzie były już znacznie bardziej złożone jednostki obliczeniowe ale one były nierozszerzalne, ta metoda wygląda tak jakby dało się powiększać kompleksy qbitów a dopiero dla dużych kompleksów zaczyna się zabawa. Zwiększenie o jeden qbit pozwala podwoić moc obliczeniową.
to zdanie tez nie ma sensu…
No wreszcie będą mogli wyprodukować jakiś sprzęt na którym Vista będzie chdzić normalnie…
i może compiz też lepiej zacznie
Proszę przyznawać plusy TheBlackManowi i minusować greggza. Pierwszy słusznie zauważył, że Vista to niewypał (jak każdy produkt M$), a drugi obraża Linuxa.
mor zazdroszczę Ci posłuchu
Jedno zdanie i od razu widać efekt
@Otaq mor ma rację. Vista jest zasobożerna i reszta produktów MS to niewypały (… również pod względem marketingowym) a Compiz korzysta z GPU a nie z CPU, co przy dzisiejszych kartach daje płynne efekty (no chyba że ktoś mocno przesadzi z ustawieniami).
Przy okazji zapytam z ciekawości. Czy Vista ma możliwość zmiany efektów na inne m/w jak Compiz?
Nie wdając się w dyskusję o Viście (już kilka razy na OSnews wyraziłem o niej swoje zdanie) to komentarz w stylu "minusujcie A i plusujcie B" jest po prostu dziecinny i śmieszny… Moim zdaniem nie powinien przejść przez moderację niezależnie czy autor miał w danej chwili rację czy nie.
A greggz by został zaminusowany i tak
No nieźle. Mój Commodore ma już 20 lat i ciągle chodzi a ten procek pali się po mikrosekundzie. Dokąd zmierza ten świat.
Nie to, że pali się po mikrosekundzie, tylko to, że przez tyle potrafi pracować nad jednym algorytmem.
Za to Twój RAM pali dane co 30 sekund. (DRAM)
Tak więc RSA i inne szyfrowania oparte o faktoryzację pójdą się już niedługo kochać? Nieciekawie.
nie "nieciekawie", tylko do roboty
Trzeba znaleść inne szyfry asymetryczne.
Komputery kwantowe od klasycznych różnią sie tym, że pracują na liczbach rzeczywistych, a nie na całkowitych. Czyli trzeba stworzyć algorytm, który będzie trudny do złamania pomimo dostępu do liczb rzeczywistych.
A co takie RSA ma wspólnego z liczbami rzeczywistymi?
Przecież idea jest oparta o liczby pierwsze.
pozdr,
fEnIo
to ma wspólnego, że operując liczbami rzeczywistymi (komputer kwantowy) złożonosć faktoryzacji zmienia się z wykładniczej na (log N)^3 – mniejsza niż liniowa?
Ale razem z kwantowymi komputerami powstaje kwantowa kryptografia, więc o prywatność bym się aż tak nie martwił
ciekawe, czy da się na tym uruchomić NetBSD…
Of course it runs NetBSD! }:->
Komputer kwantowy w tosterze? ;]
To będzie tylko sterownik z wyświetlaczem
Jeśli ma działać mikrosekundy, to się nie napiecze
Nicely this type of facts is truly worth searching for, wonderful information for readers and certainly shows superior writing. Its cool to have these kinds of posts about to maintain the facts flow. Helping these who seriously love this, good perform! Thanks once more for taking the time to place this on the web. I unquestionably liked each aspect of it.
I’d be inclined to give blessing with you here. Which is not something I typically do! I love reading a post that will make people think. Also, thanks for allowing me to comment!
Thanks man. It was cool seeing
I am pleased, I have to say. Really seldom can i go through a blog that is both educative and interesting, and without a doubt, you may have hit the nail on the head. Your current concept is actually outstanding; the problem is something which not enough people are discussing wisely about. I will be very happy that I stumbled across it with my search for something relating to this.
Thanks for expressing your ideas. I would also like to say that video games have been actually evolving. Modern technology and inventions have assisted create sensible and enjoyable games. These kinds of entertainment games were not actually sensible when the concept was first being tried out. Just like other forms of technology, video games also have had to grow via many years. This itself is testimony on the fast development of video games.
I’d have to cut a deal with you on this. Which is not something I typically do! I enjoy reading a post that will make people think. Also, thanks for allowing me to comment!
While I tend to agree with the post I sincerely believe that car insurance has become too complex for the average car insurance policy holder. Just like any important purchase however you must perform due diligence and research the insurance companies before you purchase.
I really like your blog.. very nice colors & theme. Did you make this website yourself or did you hire someone to do it for you? Plz respond as I’m looking to construct my own blog and would like to find out where u got this from. appreciate it
While I tend to agree with the post I strongly believe that car insurance has become too complex for the average car insurance policy holder. Just like any serious purchase however you must perform due diligence and research the insurance companies before you buy.
I figured out more interesting things on this losing weight issue. 1 issue is a good nutrition is especially vital if dieting. A tremendous reduction in fast foods, sugary foods, fried foods, sugary foods, beef, and white colored flour products could possibly be necessary. Having wastes harmful bacteria, and toxic compounds may prevent objectives for losing weight. While a number of drugs temporarily solve the matter, the bad side effects are not worth it, plus they never offer you more than a momentary solution. It’s a known idea that 95% of diet plans fail. Many thanks for sharing your notions on this blog.
You made some valid points in this article. I’ve done a lot of searching on the topic and think many people will agree with your post. Thanks, Preston Fire Departments
I precisely needed to say thanks all over again. I’m not certain the things I would have carried out without these tips revealed by you concerning that area of interest. Previously it was a real alarming crisis in my circumstances, nevertheless seeing a new specialized manner you handled the issue made me to jump over gladness. Now i am happier for the service and hope you are aware of an amazing job your are undertaking educating the others through the use of your web site. Most probably you have never met all of us.
I have subscribed to your rss feed which need to do the trick! Possess a nice day!
Having just been browsing forinformative websites for the research project I’ve been working on when I happened to come across yours. Thanks for this informative content! — Sharon Center Passport Offices
Very cool, some wonderful points! I appreciate you making this post available, the rest of the site is also well done. I hope you have a great day.
I always visit your blog and retrieve everything you post here but I never commented but today when I saw this post, I couldn’t stop myself from commenting here. Fantastic article mate!
Kind regards with this ad, blokes, engage up the amazing operate…
I arrived right here to get amuse, and I think I got just that, the just gripe is, I could have more. Please keep on publishing. That i beg of you. Your one as well as amongst the best of avid fans. P.S. dont quit right now ok, I managed to get you stroke up for much more hehe.
I stumbled upon an individual’s front door important would I’ve added in a new Trackback for it at a blogging site
……
I found your entire entry remarkable manage I’ve added a fabulous Trackback with it about excellent site
……
Khrushchev reminds me of the tiger hunter who has picked a place on the wall to hold the tiger’s skin long before he has caught the tiger. This tiger has different ideas.
Hello intelligent points.. now why didn’t i consider these? Off topic slightly, is that this page sample merely from an atypical set up or else do you utilize a custom-made template. I use a webpage i’m in search of to enhance and nicely the visuals is probably going one of many key issues to complete on my list.
Great thanks
קידום דפי תוכן אינטרנטיים עושים רק בחברת קידום אתרים מקצועית כמו חברת נט-סטייל . צרו עמנו קשר על מנת לרכוש שרות של קידום אתרים בגוגל בדרך הטובה ביותר.
What a great site and interesting posts, I will add a link on my blogroll and bookmark this site. Regards! Thanks! Cheers! Althea Foye
Congratulations on possessing definitely one in every of one of the most sophisticated blogs Ive arrive throughout in a while! Its just superb how a lot you’ll be capable of think about away from a thing principally merely due to how visually gorgeous it is. Youve place collectively a great blog web site area –nice graphics, films, layout. This is definitely a should-see website!
Hi, Neat post. There is a problem with your site in internet explorer, would test this… IE still is the market leader and a huge portion of people will miss your excellent writing because of this problem.
You really make it seem so easy with your presentation but I find this topic to be actually something that I think I would never understand. It seems too complex and very broad for me. I am looking forward for your next post, I will try to get the hang of it!
Great thanks
Very good blog you have here but I was wondering if you knew of any discussion boards that cover the same topics talked about in this article? I’d really love to be a part of online community where I can get opinions from other knowledgeable people that share the same interest. If you have any recommendations, please let me know. Thanks a lot! coach outlet
Great blog. So many blogs like this cover subjects that just aren’t covered by magazines. I don’t know how we got by 10 years ago with just magazines and newspapers.
hey all, I was simply checkin’ out this blog and I really admire the basis of the article, and have nothing to do, so if anyone wish to to have an engrossing convo about it, please contact me on AIM, my title is heather smith
Jesus is God in the flesh he loves Hm clothing
My neighbor and I were simply debating this particular topic, he’s often looking for to show me incorrect. Your view on this is nice and precisely how I truly feel. I simply now mailed him this web page to indicate him your own view. After trying over your website I e-book marked and might be coming again to read your new posts!
Spot on with this write-up, I actually assume this web site needs much more consideration. I’ll in all probability be once more to learn far more, thanks for that info.
How do you fancy getting your own boss, picking out your own working hours and meeting new persons just about every day? Would you prefer to make superior funds and have the satisfaction of assisting individuals discover one thing new? It is easy to see why countless people today from every walk of life need to be a driving instructor.
Effective
I actually wanted to write a quick note in order to express gratitude to you for those wonderful tips and tricks you are showing at this website. My particularly long internet search has at the end of the day been recognized with useful insight to talk about with my company. I ‘d point out that most of us site visitors are truly lucky to live in a fabulous site with many perfect people with good concepts. I feel extremely happy to have come across the site and look forward to plenty of more awesome moments reading here. Thank you once again for everything.
I’ll return as soon as again inside the possible ways to examine your blogposts down the road.
I really loved your post, thanks for sharing. — Darryl Paolucci
Very effectively written information. It is going to be valuable to anybody who usess it, together with myself. Keep up the great work – for sure i will try more posts.
I very pleased to find this web site on bing, just what I was searching for : D besides bookmarked.
Good to know
Actually one of many challenges which individuals starting a new on-line company face is that of obtaining visitors to their net site.
Thanks bro
Nice! Really nice! I’ve been blog-hopping for almost two hours now and this one is the best read I’ve had thus far. I can’t believe the amount of trash that people are churning out these days. No wonder blogging is said to be dying. Oh well… Anyway, bodybuilding is definitely not for the weak of heart (literally and figuratively). If one is planning on getting into body building and building muscles big and huge, first he/she has got to make sure that he/she has a strong determination to work until the attainment of his/her goal, and that is to get all bulked up and “ripped” (as we use in the bodybuilding parlance). Being aware that building muscles takes months or even years will help a lot as this will eliminate any false presumptions and ridiculous goals.
good good…this post deserves nothing
…hahaha just joking
…wonderful post
Very efficiently written information. It will be beneficial to anybody who usess it, including myself. Keep up the good work – for sure i’ll check out more posts.
I usually don’t leave blog comments but your writing forced me to, wonderful work.
I used to be very happy to search out this internet-site.I wanted to thanks for your time for this excellent learn!! I positively enjoying every little little bit of it and I’ve you bookmarked to take a look at new stuff you weblog post.
British Sovereigns struck in more recent years are in high demand amongst investors rather than collectors.
Really like your web sites particulars! Undoubtedly a wonderful provide of information that is extremely helpful. Keep on to hold publishing and i’m gonna proceed studying by means of! Cheers.
The subsequent time I learn a blog, I hope that it doesnt disappoint me as a lot as this one. I imply, I know it was my choice to read, however I actually thought youd have something interesting to say. All I hear is a bunch of whining about one thing that you possibly can fix if you happen to werent too busy in search of attention.
I stumbled onto your primary front door engaging do I’ve more an important Trackback to it with my web log
……
Definitely one of many challenges which people beginning a brand new on-line firm face is that of obtaining guests to their internet site.
Very good shorter and this piece of writing taught me to be a decent amount. Thank you Document struggling to find your current information….
Do you have a spam problem on this blog; I also am a blogger, and I was curious about your situation; many of us have developed some nice procedures and we are looking to swap methods with other folks, please shoot me an email if interested.
Hi there! Do you know if they make any plugins to assist with SEO? I’m trying to get my blog to rank for some targeted keywords but I’m not seeing very good gains. If you know of any please share. Thanks!