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Keyword: quantum

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  • 400 Miles of New Fence Voting Systems

    11/09/2020 7:59:12 AM PST · by RobaWho · 7 replies
    Curious Dawg ^ | November 9, 2020 | Curious Dawg
    Who believes President Donald J. Trump would care about securing America with 400+ miles of new border fence, but he wouldn’t care about securing America’s terribly corrupt voting system with remarkably safe, quantum computing systems built on highly proven, blockchain technology? Why would President Trump defend us against illegal foreign invasion into our country but, not defend us against illegal foreign invasion into our voting systems? Why did President Trump unveil a brand new www.Quantum.gov Agency a few months ago? Why would President Trump add Distributed Ledger Technology (DLT), a remarkable new blockchain technology, to his list of Top 20...
  • China’s Quantum Communication Industry Appears to Be a Big Failure

    10/14/2020 8:21:18 PM PDT · by SeekAndFind · 6 replies
    Epoch Times ^ | 10/13/2020 | Chen Simin
    The Chinese Communist Party (CCP)’s 13th Five-Year Plan is going to conclude this year. For the first time, quantum communications was part of the plan, and it was even listed as the second largest strategic emerging industry and a government-sponsored R&D project. But the project is likely to fail and is going to be a big investment failure.On Sept. 29, 2017, the regime’s mouthpiece Xinhua highly praised the official opening of the “Beijing-Shanghai Link”—a quantum secured communication fiber-optic link that connected Beijing and Shanghai. Pan Jianwei, the project’s leader and China’s top quantum physicist, indicated that this quantum link will...
  • New evidence that the quantum world is even stranger than we thought

    09/04/2020 5:48:07 PM PDT · by LibWhacker · 60 replies
    PhysOrg ^ | 9/4/2020 | Steve Tally
    New evidence that the quantum world is even stranger than we thought .journalist-note { background-color: #ebd99f; padding: 0.5rem 0.75rem; } <p> .journalist-note p { margin: 0 !important; } Note to journalists: Journalists visiting campus should follow visitor health guidelines. Experimental evidence of quasiparticles called anyons has been found by a team of scientists at Purdue University. Electrical interference in the experiment created a pattern which the researchers called a “pyjama plot”; jumps in the interference pattern were the signature of the presence of anyons. (Purdue University image/James Nakamura) WEST LAFAYETTE, Ind. — New experimental evidence of a collective behavior of...
  • Scientists discover way to make quantum states last 10,000 times longer

    08/14/2020 7:17:36 AM PDT · by BenLurkin · 20 replies
    phys.org ^ | 08/13/2020
    University of Chicago's Pritzker School of Molecular Engineering announced the discovery of a simple modification that allows quantum systems to stay operational—or "coherent"—10,000 times longer than before. Though the scientists tested their technique on a particular class of quantum systems called solid-state qubits, they think it should be applicable to many other kinds of quantum systems and could thus revolutionize quantum communication, computing and sensing. Quantum states need an extremely quiet, stable space to operate, as they are easily disturbed by background noise coming from vibrations, temperature changes or stray electromagnetic fields. Thus, scientists try to find ways to keep...
  • Is space-time smooth or chunky? A new study tried to find out.

    04/30/2020 5:29:29 AM PDT · by C19fan · 18 replies
    Space.com ^ | April 29, 2020 | Paul Sutter
    What is the fundamental nature of reality? Is space-time — the four-dimensional fabric of our universe — ultimately smooth at the tiniest of scales, or something else? It seems impossible to measure, but with the power of advanced telescopes peering through billions of light-years of distance, researchers are beginning to look down. Deep down.
  • Industrial giant Honeywell says it’s built the world’s best quantum computer

    03/04/2020 6:20:30 AM PST · by Red Badger · 58 replies
    www.technologyreview.com MIT ^ | March 3, 2020 | Staff
    The news: Honeywell, a US company best known for its home thermostats, has announced that it has built the world’s most powerful quantum computer. While all eyes were on IBM and Google, which last year knocked heads over quantum supremacy, Honeywell has been working quietly on quantum tech that it plans to make available to clients via the internet in the next three months. How it works: Most quantum computers, including those being developed by IBM and Google, are built around superconducting qubits, which use supercooled circuits. Honeywell’s quantum computer uses a different technology, called ion traps, which hold ions—the...
  • The Terrible Truth About Star Trek's Transporters

    02/20/2020 6:45:35 AM PST · by C19fan · 99 replies
    SyFy ^ | February 19, 2020 | Cassidy Ward
    After more than 50 years on the air, Star Trek has become a sort of universal vision of the future. Where other stories imagine a world torn by war, or at the mercy of technology run wild, Star Trek imagines, if not the best possible future, one very close to it. Creator Gene Roddenberry's vision of humanity in the 23rd and 24th centuries unifies the planet, does away with grand-scale internal conflict, erases the need for a money-based economy, and opens up a whole galaxy of possibilities for the human species. The result is a people working together to create...
  • Quantum Locking Will Blow Your Mind—How Does It Work?

    01/22/2020 12:31:12 PM PST · by Enlightened1 · 43 replies
    The Action Lab ^ | 01/09/20
    In this video I use a type II superconductor to perform a quantum locking demonstration using YCBO (Yttrium barium copper oxide). I then explain in depth how superconductors and quantum locking (Flux pinning) works. https://www.youtube.com/watch?v=8GY4m022tgo&t=370s
  • The experimental demonstration of a spin quantum heat engine

    12/30/2019 6:08:13 PM PST · by BenLurkin · 26 replies
    Phys.org ^ | 12/30/2019 | Ingrid Fadelli ,
    The theoretical notion of a 'quantum heat engine' has been around for several decades. It was first introduced around sixty years ago by Scovil and Schulz-DuBois, two physicists at Bell Labs who drew an analogy between three-level masers and thermal machines. In the years that followed, other researchers have developed a variety of theories building on the ideas of Scovil and Schulz-DuBois, introducing proposals of thermodynamic cycles at the quantum scale. Very recently, physicists have started testing some of these theories in experimental settings. One of these experiments was carried out by a team of researchers at the University of...
  • Here’s what quantum supremacy does—and doesn’t—mean for computing

    09/25/2019 2:50:36 PM PDT · by LibWhacker · 33 replies
    MIT Technology Review ^ | 9/24/19 | Martin Giles
    Here’s what quantum supremacy does—and doesn’t—mean for computing And no, super-powerful computers are not about to take over by Martin Giles Sep 24, 2019 Google Google has reportedly demonstrated for the first time that a quantum computer is capable of performing a task beyond the reach of even the most powerful conventional supercomputer in any practical time frame—a milestone known in the world of computing as “quantum supremacy.”The ominous-sounding term, which was coined by theoretical physicist John Preskill in 2012, evokes an image of Darth Vader–like machines lording it over other computers. And the news has already produced some outlandish...
  • Google researchers have reportedly achieved “quantum supremacy”

    09/20/2019 3:20:30 PM PDT · by LibWhacker · 47 replies
    MIT Technology Review ^ | 9/17/19 | Martin Giles
    Google researchers have reportedly achieved “quantum supremacy” The news: According to a report in the Financial Times, a team of researchers from Google led by John Martinis have demonstrated quantum supremacy for the first time. This is the point at which a quantum computer is shown to be capable of performing a task that’s beyond the reach of even the most powerful conventional supercomputer. The claim appeared in a paper that was posted on a NASA website, but the publication was then taken down. Google did not respond to a request for comment from MIT Technology Review.Why NASA? Google struck...
  • Researchers build transistor-like gate for quantum information processing – with qudits

    07/16/2019 4:14:38 PM PDT · by BenLurkin · 38 replies
    Phys.org ^ | 07/16/2019
    The more entanglement in the so-called Hilbert space—the realm where quantum information processing can take place—the better. Previous photonic approaches were able to reach 18 qubits encoded in six entangled photons in the Hilbert space. Purdue researchers maximized entanglement with a gate using four qudits—the equivalent of 20 qubits—encoded in only two photons. In quantum communication, less is more. "Photons are expensive in the quantum sense because they're hard to generate and control, so it's ideal to pack as much information as possible into each photon," said Poolad Imany, a postdoctoral researcher in Purdue's School of Electrical and Computer Engineering....
  • The Quantum Theory That Peels Away the Mystery of Measurement

    07/14/2019 5:55:29 AM PDT · by LibWhacker · 44 replies
    Quanta Magazine ^ | 7/3/19 | Phillip Ball
    A recent test has confirmed the predictions of quantum trajectory theory, which describes what happens during the long-mysterious “collapse” of a quantum system.Imagine if all our scientific theories and models told us only about averages: if the best weather forecasts could only give you the average daily amount of rain expected over the next month, or if astronomers could only predict the average time between solar eclipses. In the early days of quantum mechanics, that seemed to be its inevitable limitation: It was a probabilistic theory, telling us only what we will observe on average if we collect records for...
  • Why our Understanding of Reality is False

    04/18/2019 5:20:21 PM PDT · by vannrox · 81 replies
    Metallicman ^ | 18APR19 | Editorial Staff
    One of the reasons why humans are handicapped in our understanding of reality is because of our reliance on the “scientific method”. It is a system based on observation. The problem with this method is that our understanding of reality is corrupted by the limits imposed by observation. Indeed, as well well know, it is the perception of the observer that changes our reality. This is a well understood rule. If you the reader, don’t “get it”, then you need to study quantum mechanics 101. For in the last two decades the entire foundation of our understanding of reality has...
  • QUANTUM TIME Scientists have built world’s first ‘time machine’ experiment which defies the laws...

    03/13/2019 6:42:06 AM PDT · by Red Badger · 62 replies
    The SUN - UK ^ | 13th March 2019, 1:12 am Updated: 13th March 2019, 1:29 pm | By Greg Wilford
    FULL TITLE: QUANTUM TIME Scientists have built world’s first ‘time machine’ in experiment which defies the laws of physics ============================================================ Lead researcher Dr Gordey Lesovik said by putting scattered electrons back into their original shape they had effectively created a state which went against the 'direction of time' ============================================================ SCIENTISTS have built the world’s first time machine — sort of. Working with electrons in the bizarre realm of quantum mechanics, they first created the equivalent of a break for a game of pool. The “balls” scattered and, according to the laws of physics, should have appeared to split in a...
  • Life on the edge in the quantum world

    02/08/2019 1:11:58 PM PST · by ETL · 26 replies
    Phys.org ^ | February 8, 2019 | Aalto University
    Quantum physics sets the laws that dominate the universe at a small scale. The ability to harness quantum phenomena could lead to machines like quantum computers, which are predicted to perform certain calculations much faster than conventional computers. One major problem with building quantum processors is that the tracking and controlling quantum systems in real time is a difficult task because quantum systems are overwhelmingly fragile: Manipulating these systems carelessly introduces significant errors in the final result. New work by a team at Aalto could lead to precise quantum computers. The researchers report controlling quantum phenomena in a custom-designed electrical...
  • IBM Unveils World's First Quantum Computer That Businesses Can Use

    01/09/2019 6:25:05 AM PST · by Enlightened1 · 39 replies
    Business Insider ^ | 01/09/18 | Rosalie Chan
    For many years, quantum computers have been within only the confines of the research lab. On Tuesday, though, IBM unveiled the IBM Q System One, billed as the first-ever quantum computer designed for businesses to put to their own use — though the company is clear that this is only the first step toward a broader revolution. Quantum computing is considered one of the most promising early-stage technologies out there today. That's because quantum computers can process exponentially more data and have the potential to completely transform entire industries. For example, they could streamline aerospace and military systems, calculate risk...
  • uantum computers will break the encryption that protects the internet

    10/24/2018 8:19:53 AM PDT · by DUMBGRUNT · 17 replies
    The Economist ^ | 20 Oct 2018
    As every schoolchild knows, some sorts of mathematics are harder than others... Factorising numbers into their constituent primes may sound esoteric, but the one-way nature of the problem—and of some other, closely related mathematical tasks—is the foundation on which much modern encryption rests. ...The only catch was that for large numbers his method—dubbed Shor’s algorithm—needs a quantum computer to work. ...One question is, when is the deadline? When will an internet-breaking computer actually be available?...
  • Why the Many-Worlds Interpretation Has Many Problems

    10/19/2018 6:27:03 AM PDT · by C19fan · 48 replies
    Quanta Magazine ^ | October 18, 2018 | Phillip Ball
    It is the most extraordinary, alluring and thought-provoking of all the ways in which quantum mechanics has been interpreted. In its most familiar guise, the many-worlds interpretation (MWI) suggests that we live in a near-infinity of universes, all superimposed in the same physical space but mutually isolated and evolving independently. In many of these universes there exist replicas of you and me, all but indistinguishable yet leading other lives. The MWI illustrates just how peculiarly quantum theory forces us to think. It is an intensely controversial view. Arguments about the interpretation of quantum mechanics are noted for their passion, as...
  • The reality of quantum computing could be just three years away

    09/12/2018 7:38:37 AM PDT · by GrandJediMasterYoda · 53 replies
    techcrunch.com ^ | 9/7/18 | Jonathan Shieber
    The reality of quantum computing could be just three years away Quantum computing has moved out of the realm of theoretical physics and into the real world, but its potential and promise are still years away. Onstage at TechCrunch Disrupt SF, a powerhouse in the world of quantum research and a young upstart in the field presented visions for the future of the industry that illustrated both how far the industry has come and how far the technology has to go. For both Dario Gil, the chief operating officer of IBM Research and the company’s vice president of artificial intelligence...