tag:blogger.com,1999:blog-8148573551417578681.post7890880880992450988..comments2020-07-28T21:48:03.534-07:00Comments on Dark Buzz: On the verge of quantum supremacy againRogerhttp://www.blogger.com/profile/03474078324293158376noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-8148573551417578681.post-55294048010052014902019-09-23T17:27:48.468-07:002019-09-23T17:27:48.468-07:00Yep, all kinds of "analog" reality is ha...Yep, all kinds of "analog" reality is hard for classical computers but take a look at Martinis' paper on surface codes. Want to use Shor's algorithm to break RSA? Beauregard: "We introduce a circuit which uses 2n+3 qubits and O(n^3 lg(n)) elementary quantum gates in a depth of O(n^3) to implement the factorization algorithm." 2048*2+3 = 4099 cubits! Martinis: at an extremely optimistic 1/10th the threshold rate "[w]e can now estimate the number of physical qubits needed for our factoring problem. The 4,000 computational logical qubits require a total of about 4000 × 14,500 = 58 million physical qubits." https://arxiv.org/pdf/quant-ph/0205095.pdf https://arxiv.org/pdf/1905.09749.pdf https://arxiv.org/ftp/arxiv/papers/1208/1208.0928.pdfMD Coryhttps://www.blogger.com/profile/05342743632013663077noreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-29245631786765331552019-09-23T10:04:34.114-07:002019-09-23T10:04:34.114-07:00The Joshua Tree Quantum Computer Achieves Quantum ...The Joshua Tree Quantum Computer Achieves Quantum Supremacy: Dr. Elliot McGucken's research group hath created a quantum computer capable of simulating over five sextillion atoms in the form of water molecules, performing massively complex calculations in a fraction of a second. These highly complex many-body calculations would take classical computers over a trillion trillion trillion years to solve and simulate. The JT Quantum Computer leverages the quantum multiverse to generate random numbers and pattern distributions via the entangled interactions of five sextillion atoms.<br /><br />Atoms in a drop of water = 3 atoms/molecule x 1.67 x 10^21 molecules = 5.01 x 10^21 atoms, or five sextillion atoms.<br /><br />The patent-pending Joshua Tree Quantum Computer works as follows:<br /><br />One obtains an eye-dropper and a glass of water.<br /><br />One takes up a drop of water in the eye-dropper.<br /><br />One drops said drop of water onto a flat piece of glass.<br /><br />Immediately one achieves and observes the random pattern distribution based on the entangled interactions between the over 5.01 x 10^21 atoms (five sextillion atoms), as the combined wave function collapses and the universe splits a trillion trillion times. Using a classical computer, one would be unable to simulate this calculation even after a trillion trillion trillions years. The JT Quantum Computer leverages the entangled quantum interactions between the atoms, thusly mining the Hilbert Space of parallel universes and the multiverse in a manner that is at least several sextillion times faster than IBM's leading SUMMIT super computer.<br /><br />And so the Joshua Tree Quantum Computer hath achieved quantum supremacy. <br /><br />The Wright Brother's first flight lasted under a minute, and already we have crossed far further than that, with big plans for the future, and multitudinous commercial applications. A new era hath dawned.<br /><br />We are currently seeking $200 million in funding to complete the design of the Redwood Quantum Computer, which will involve an entire bucket of water and which will be able to leverage the many worlds of Sean Carroll.<br /><br />dx4/dt=ic friends, dx4/dt=ic :) :) :)Golden Number Ratiohttps://www.blogger.com/profile/06047804495884984100noreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-34996358379645870062019-09-23T07:36:37.323-07:002019-09-23T07:36:37.323-07:00See https://gilkalai.wordpress.com/2019/09/23/quan...See https://gilkalai.wordpress.com/2019/09/23/quantum-computers-amazing-progress-google-ibm-and-extraordinary-but-probably-false-supremacy-claims-google/Craignoreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-82509440911680105202019-09-21T16:48:06.744-07:002019-09-21T16:48:06.744-07:00Aaronson: "It might or might not have any imm...Aaronson: "It might or might not have any immediate use. If it doesn’t—well, the Wright Flyer also took years to find commercial applications. There’s obviously still a long, long way to go to get to fault-tolerance and scalability."MD Coryhttps://www.blogger.com/profile/05342743632013663077noreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-53270871321600263252019-09-21T09:11:51.197-07:002019-09-21T09:11:51.197-07:00Dear Roger,
Here is a fascinating thread with lot...Dear Roger,<br /><br />Here is a fascinating thread with lots of insights into this "Quantum Supremacy."<br /><br />https://news.ycombinator.com/item?id=21029598<br /><br />"The article says:<br />"A paper by Google’s researchers seen by the FT, that was briefly posted earlier this week on a Nasa website before being removed, claimed that their processor was able to perform a calculation in three minutes and 20 seconds that would take today’s most advanced classical computer, known as Summit, approximately 10,000 years."<br /><br />Why was that paper removed on the Nasa website? Also, I'm curious if supplementary data was provided to support the claims?"<br /><br />Also, I quote again: "Someone’s about to get a stern talking to on Monday it seems. I wonder though, if it was someone from NASA or from Google that made the mistake of uploading the paper earlier than they should have."<br /><br />Read it all here:<br />https://news.ycombinator.com/item?id=21029598Golden Number Ratiohttps://www.blogger.com/profile/06047804495884984100noreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-2104379262004705142019-09-21T09:07:57.285-07:002019-09-21T09:07:57.285-07:00Roger, do you even know what they mean by supremac...Roger, do you even know what they mean by supremacy? NISQs have no error correction and the sampling is on random circuits. It has nothing to do with proving that the underlying phenomena is really digital. In fact, "the same sampling complexity can be achieved from driven analog quantum processors, with less stringent requirements for coherence and control." (https://arxiv.org/pdf/1906.03860.pdf) We already know that QM is hard to compute. Hell, classical n-body problems are hard to compute, let alone quantum ones.<br /><br />You can find the article here:<br />https://filebin.net/k5rr4l0p6ldde7hr/Quantum_Supremacy_Using_a_Programmable_Superconducting_Processor.html?t=uq8a3jttMD Coryhttps://www.blogger.com/profile/05342743632013663077noreply@blogger.comtag:blogger.com,1999:blog-8148573551417578681.post-69033384985513071742019-09-21T08:48:41.708-07:002019-09-21T08:48:41.708-07:00This is just a sales pitch to try and convince the...This is just a sales pitch to try and convince the public to dump more money into quantum computing when they have nothing they have already over promised to show for the billions already spent. <br /><br />If the damn thing had any actual usefulness to crack any encryption blah blah blah, do you really think the government and banking interests would say 'sure, plonk it down on the internet for anyone to tinker with'? If you do believe they would, I have a secret sciencey project of my own I'd like you to invest in, I call it "Making a billion dollars disappear into a MWI black hole". CFTnoreply@blogger.com