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1 lượt xem 25/10/2020



Quantum computing is poised to change the computing landscape, unleashing solutions for a plethora of super complex, hitherto unsolvable or time-demanding problems. Sycamore was able to complete the task in three minutes and 20 seconds.

But the qubits need to be synchronised using a quantum effect known as entanglement, which Albert Einstein termed "spooky action at a distance".

Prediction would open up the door to the development of a wide range of new materials with still unknown properties. Google blog: ai.googleblog.com/2020/08/scal … amental-quantum.html.

Current quantum computer technology is not yet ready to take on such a challenge, of course, but computer scientists are hoping to get them there sometime in the near future. Get weekly and/or daily updates delivered to your inbox. Click here to sign in with

Google’s quantum computer was reportedly able to solve a calculation — proving the randomness of numbers produced by a random number generator — in 3 … ", .css-1hlxxic-PromoLink:link{color:inherit;}.css-1hlxxic-PromoLink:visited{color:#696969;}.css-1hlxxic-PromoLink:link,.css-1hlxxic-PromoLink:visited{-webkit-text-decoration:none;text-decoration:none;}.css-1hlxxic-PromoLink:link:hover,.css-1hlxxic-PromoLink:visited:hover,.css-1hlxxic-PromoLink:link:focus,.css-1hlxxic-PromoLink:visited:focus{color:#B80000;-webkit-text-decoration:underline;text-decoration:underline;}.css-1hlxxic-PromoLink:link::after,.css-1hlxxic-PromoLink:visited::after{content:'';position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;}Spain imposes national curfew to curb Covid spread. IBM, which has been working on quantum computers of its own, questioned some of Google's figures.

Video, Malcolm X: From civil rights to Smethwick, Swimming with sharks at Bondi Beach. “To our knowledge,” Google’s paper read, “this experiment marks the first computation that can only be performed on a quantum processor.” The Google research paper was titled “Quantum supremacy using a programmable superconducting processor.”. Figuring out how to program Google's Sycamore quantum system was not difficult—the hard part was figuring out how to ensure the results were accurate—quantum computers are notoriously prone to errors.

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part may be reproduced without the written permission. Quantum computing is all about qubits, or quantum bits. Speaking to the FT, IBM’s head of research Dario Gil said that Google’s claim to have achieved quantum supremacy is “just plain wrong.” Gil said that Google’s system is a specialized piece of hardware designed to solve a single problem, and falls short of being a general-purpose computer, unlike IBM’s own work. They have also said this milestone puts a … Validation was the real achievement of the AI Quantum team. Your email address is used only to let the recipient know who sent the email. Apart from any fair dealing for the purpose of private study or research, no Your feedback will go directly to Science X editors. “We along with the industry are working to quickly advance all of those areas to realize the true potential of quantum computing. A Medium post theorized on the capabilities of the quantum computer, “Sycamore,” Google’s latest quantum breakthrough. However, scientists have struggled to build working devices with enough qubits to make them competitive with conventional types of computer. Quantum computing chips are very unstable, and prone to interference from heat and electricity. By using our site, you acknowledge that you have read and understand our Privacy Policy "We argue that an ideal simulation of the same task can be performed on a classical system in 2.5 days and with far greater fidelity," IBM researchers Edwin Pednault, John Gunnels, and Jay Gambetta said in a blog post. Earlier this year it unveiled the Q System One. Among the others vying for a piece of the quantum action are Intel, Microsoft and Chinese companies Alibaba and Baidu. In this new effort, the team at AI Quantum focused their efforts on simulating a simple chemical process—the Hartree-Fock approximation of a real chemical system—in this particular case, a diazene molecule undergoing a reaction with hydrogen atoms, resulting in an altered configuration. Medical Xpress covers all medical research advances and health news, Tech Xplore covers the latest engineering, electronics and technology advances, Science X Network offers the most comprehensive sci-tech news coverage on the web. .css-yidnqd-InlineLink:link{color:#3F3F42;}.css-yidnqd-InlineLink:visited{color:#696969;}.css-yidnqd-InlineLink:link,.css-yidnqd-InlineLink:visited{font-weight:bolder;border-bottom:1px solid #BABABA;-webkit-text-decoration:none;text-decoration:none;}.css-yidnqd-InlineLink:link:hover,.css-yidnqd-InlineLink:visited:hover,.css-yidnqd-InlineLink:link:focus,.css-yidnqd-InlineLink:visited:focus{border-bottom-color:currentcolor;border-bottom-width:2px;color:#B80000;}@supports (text-underline-offset:0.25em){.css-yidnqd-InlineLink:link,.css-yidnqd-InlineLink:visited{border-bottom:none;-webkit-text-decoration:underline #BABABA;text-decoration:underline #BABABA;-webkit-text-decoration-thickness:1px;text-decoration-thickness:1px;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none;text-underline-offset:0.25em;}.css-yidnqd-InlineLink:link:hover,.css-yidnqd-InlineLink:visited:hover,.css-yidnqd-InlineLink:link:focus,.css-yidnqd-InlineLink:visited:focus{-webkit-text-decoration-color:currentcolor;text-decoration-color:currentcolor;-webkit-text-decoration-thickness:2px;text-decoration-thickness:2px;color:#B80000;}}The result appears in Nature journal. At least, it seems to have. Google’s quantum computing chip, dubbed Sycamore, achieved its results using exactly 53 qubits. By contrast, the researchers claim in their paper that Summit, the world's best supercomputer, would take 10,000 years to complete the task. or, August 28, 2020

Neither your address nor the recipient's address will be used for any other purpose. The era of practical quantum computers has begun -- at least on one speed test showing "quantum supremacy." Scientists develop first quantum algorithm to characterize noise across large systems, science.sciencemag.org/content/369/6507/1084, ai.googleblog.com/2020/08/scal … amental-quantum.html, Precision metrology closes in on dark matter, Shedding light on moiré excitons: A first-principles perspective, Possible evidence of Inca burying llama alive in ritualistic ceremonies, A machine-learning algorithm that can infer the direction of the thermodynamic arrow of time, Two international samples used for large-scale study of gender differences in moral judgments within cultures. Google quantum computer leaves old-school supercomputers in the dust. A pair of qubits that can exist as either 1s or 0s can embody four possible states. Google’s Sycamore processor mounted in a cryostat, recently used to demonstrate quantum supremacy and the largest quantum chemistry simulation on a quantum computer. .css-14iz86j-BoldText{font-weight:bold;}Google says an advanced computer has achieved "quantum supremacy" for the first time, surpassing the performance of conventional devices. What comes on top of a generator of a PDE? Despite hitting the milestone, it’s likely that quantum computers capable of tackling practical tasks are still years away.
report, by Bob Yirka , Phys.org. Xiao Yuan of Stanford University has written a Perspective piece outlining the potential benefits of quantum computer use to conduct chemical simulations and the work by the team at AI Quantum, published in the same journal issue. Unlike regular bits, which store data as either 1s or 0s, qubits take advantage of the quantum phenomenon known as superposition. Although it was still far from being a practical computing device, IBM’s breakthrough was to make it much more reliable than previous quantum machines. .css-gw44ni-IconContainer{display:inline-block;height:1em;width:1em;vertical-align:-0.125em;margin-right:0.25em;}playDr Fauci: Vaccine result could come by December. As well as a night-time curfew, travel between regions can be banned under the emergency measures.

Google says an advanced computer has achieved "quantum supremacy" for the first time, surpassing the performance of conventional devices. ‘The first computation that can only be performed on a quantum processor’, Google says that it has achieved quantum supremacy, a major milestone towards the development of quantum computers.

But its equivalent in a quantum system - the qubit (quantum bit) - can be both 1 and 0 at the same time.

"This is in fact a conservative, worst-case estimate, and we expect that with additional refinements the classical cost of the simulation can be further reduced.". In the meantime, big companies like Google are investing in research geared toward using quantum computers once they mature. Your opinions are important to us. Google has described the recent achievement as a "milestone towards full-scale quantum computing." newsletter. Following this, Google developed a 53-qubit design called Sycamore, which was used to achieve the recent breakthrough. A team of researchers with Google's AI Quantum team (working with unspecified collaborators) has conducted the largest chemical simulation on a quantum computer to date. The BBC is not responsible for the content of external sites. This phenomenon opens the door for multiple calculations to be performed simultaneously. Sycamore contains 54 qubits, although one of them did not work, so the device ran on 53 qubits. VideoDr Fauci: Vaccine result could come by December, France urges Arab nations to prevent boycotts, First US 'murder hornet' nest eradicated with hose, Adele sings and jokes about weight as she hosts SNL, Socially-distanced Sesame Street. Three qubits can embody eight.

VideoSwimming with sharks at Bondi Beach, My search for British novelist's famed French summer, Mixed-reality Mario Karts race around the home.

Thank you for taking your time to send in your valued opinion to Science X editors. Video, Mixed-reality Mario Karts race around the home, Doha airport in Qatar 'examined women internally' after newborn baby found, France urges Arab nations to prevent boycotts over Macron's cartoons defence, Covid: Spain imposes national night-time curfew to curb infections, Coronavirus: Berlin breaks up 600-strong party over Covid, Adele sings and jokes about weight loss as she hosts Saturday Night Live, Tanker stowaways: Seven detained off Isle of Wight. And while development is still at mile one of this marathon, we strongly believe in the potential of this technology.“, The University of Southern California’s Daniel Lidar also praised the way Google’s system reduced the problem of “crosstalk,” which is where a quantum computer’s qubits interfere with one another. We do not guarantee individual replies due to extremely high volume of correspondence. Video, Dr Fauci: Vaccine result could come by December, Malcolm X: From civil rights to Smethwick. The team also used two other checking systems, both geared toward calculating results to spot and fix errors. Google’s latest quantum computer, Sycamore, also has 53 qubits. Read about our approach to external linking. IBM’s new design was able to minimize this interference, the company said. The Quantum Threat. Spain imposes national curfew to curb Covid spread, Dr Fauci: Vaccine result could come by December.

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