1622 lines
120 KiB
Text
1622 lines
120 KiB
Text
<!DOCTYPE html>
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<html lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ og: http://ogp.me/ns# rdfs: http://www.w3.org/2000/01/rdf-schema# schema: http://schema.org/ sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema# ">
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<head>
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<h1 class="nist-page__title">Seeking the Power of Quantum Computing in Silicon</h1>
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<div class="daterange"><time datetime="2020-02-25T12:00:00Z">February 25, 2020</time>
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<span>By: </span>
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<a href="/blogs/taking-measure/authors/josh-pomeroy" hreflang="en">Josh Pomeroy</a>
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<figure class="nist-image--lightbox nist-image" data-lightbox="https://www.nist.gov/sites/default/files/styles/2800_x_2800_limit/public/images/2020/02/14/Josh_leveled.jpg?itok=lbsZvGTe" data-media-id="572326">
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<img loading="lazy" src="/sites/default/files/styles/960_x_960_limit/public/images/2020/02/14/Josh_leveled.jpg?itok=xGJQAuYN" width="960" height="600" alt="man with goggles, blue shirt and blue cap adjusts a pipe on top of a gleaming aluminum ultra-high vacuum (UHV) metal deposition chamber" title="Josh Pomeroy with ultra-high vacuum (UHV) metal deposition chamber" typeof="foaf:Image" />
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<figcaption class="nist-image__caption">
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<p>Here I am checking the status of a specially built ultra-high vacuum (UHV) metal deposition chamber used for developing thin films compatible with use in quantum information devices.</p>
|
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</div>
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<div class="nist-image__credit">
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<span class="nist-image__credit-label">Credit:</span>
|
||
|
||
C. Suplee/NIST
|
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</div>
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</figcaption>
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<p>Despite the vast computing speed and power available to us in our palms, our desktops and massive server farms, classical computing is reaching its limits, leaving a surprising number of conceptually simple problems essentially intractable. In general, these tend to be problems that ask, “What is the most efficient way to do something?” These problems become exponentially more difficult as the number of possible choices grows, and rather than explicitly determine the answer, we instead rely on “best practices” or instinct. But quantum computing can change that.</p><h2>Getting to work</h2><p>The daily commute to work provides a real-world example we can all identify with. Personally, every morning I have four or five choices for my route to work. Each day I contemplate several factors that I think will affect which is most efficient: Is it a popular telework day like Monday or Friday or a holiday week? Is it raining? Do I feel like a rural, winding drive, or a “stimulating,” lane-switching, high-speed commute? Once I choose a particular route, I engage in another layer of optimization: I note which lanes tend to move most efficiently over which distances at which times of day; I adjust my speed once I clear one green light to improve my chances of hitting the next green light; and I preemptively change lanes to avoid the backup for the doughnut shop drive-through or the I-270 ramp.</p><p>OK, I admit I am a bit neurotic in how I approach my commute. But consciously or not, we all engage in some sort of decision-making process when we depart for work in the morning. Maybe you just choose the same route and tune out as your mind prepares for the day ahead. Or maybe you rely on a navigation app, perhaps one that considers traffic conditions to adjust routing. But even these are surprisingly limited, usually only considering arterial routes (avoiding small back roads) and giving little or no attention to how traffic conditions are likely to change by the time you reach a particular segment. These limitations are not simply a deficiency of data — considering those weighting factors makes it a really hard problem!</p><p>Our drive to work is one of the simplest examples of a problem academically known as the “Traveling Salesman Problem,” but it is perhaps more apropos today to call it the “Package Delivery Problem.” The general idea is that a courier is tasked with visiting a number of locations to make deliveries and must choose a route. For simplicity, let’s suppose it’s a light day and only 10 deliveries are needed — that is still a whopping 3,628,800 different possible combinations of stops!</p><h2>The package delivery problem</h2><p>Obviously, the courier doesn’t work through all these possibilities and instead uses intuition or experience to quickly discard many of them. Common sense dictates you choose a network of next nearest locations and progress through the list, but in reality, the complexity continues to rapidly grow with real-world constraints; for example, geographic features may intercede. What if some locations are in northern Virginia and others in southern Maryland, where the Potomac River drastically increases the “cost” of moving between Maryland and Virginia? Then, as illustrated by the single destination example above, many choices may exist between a pair of locations, each affected by many factors (road quality, traffic, weather, etc.). All these factors adjust the effective length of each link and change in time as the route progresses, all of which makes finding the optimal solution untenable.</p>
|
||
<figure class=" nist-image--lightbox nist-image" role="group">
|
||
<div data-lightbox="https://www.nist.gov/sites/default/files/styles/2800_x_2800_limit/public/images/2020/02/14/Traveling%20salesman-crash.jpg?itok=xMBR79ov" data-media-id="572336">
|
||
|
||
<img alt="a delivery truck with a question mark hovering over it sits parked near a group of houses as the driver tries to figure out the optimal route to make deliveries. There are a pair of crashed cars near the center of the graphic to illustrate that optimization problems like this are hard to solve. " height="1000" loading="lazy" src="/sites/default/files/images/2020/02/14/Traveling%20salesman-crash.jpg" title="Package delivery problem" typeof="foaf:Image" width="1500">
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
<figcaption class="nist-image__caption">Package couriers seeking to optimize time and fuel are presented with a new set of locations to visit each shift, but something as simple as a fender-bender can disrupt the entire route by removing critical connections.<div class="nist-image__credit">
|
||
<span class="nist-image__credit-label">Credit:</span>
|
||
|
||
N. Hanacek/NIST
|
||
|
||
</div></figcaption>
|
||
</figure>
|
||
|
||
<p>Enter quantum. Classical computing must calculate the effective distance between each node (which may also depend on time), and then work through the total length of all possible combinations in order to find the optimal route. However, unlike the binary bits used in classical computing with only two possible values, 0 and 1, quantum algorithms use “qubits” in which information is encoded in multiple dimensions, i.e., a qubit can be composed of both 0 and 1 at the same time. Furthermore, the information in qubits can be coded to generate “entanglement,” a unique quantum property that vastly increases the computational power for problems of complexity, making a classically intractable problem trivial. The bevy of possible problems that could be solved by quantum makes our classical computational power look like we are counting on our fingers.</p><p>But while an easier commute, incrementally faster package delivery or smoother air traffic system may all improve our lives in small ways, scientists imagine much more substantial opportunities. For example, our bodies are incredibly complex networks with massive interconnectivity. When a new medicine is introduced, the effect ripples through the whole system. Hopefully, the main result is a reduction in swelling or stabilized heart rate as intended, but that often comes along with negative side effects. Modern medicine must rely on statistics to predict how most people will respond to a certain medicine at a certain dose. But each of our bodies is unique, so each of us has our own optimal solution, often significantly different from others.</p><h2>Quantum silicon</h2><p>A future with more effective medicine, more efficient energy use and better commutes(!) is what motivates thousands of physicists, chemists, engineers and computer scientists to develop practical quantum computing. What is the optimal approach? The majority opinion is that modifying conventional silicon transistor technology to host quantum computation seems like the best way forward. But despite the many excellent attributes of silicon, silicon dioxide and our nanofabrication technology, silicon technology is not yet sufficient for quantum.</p><p>Why? In classical computing, information is represented with electric charges in silicon, but quantum computing is expected to rely on “spin.” Spin is the property of an electron or atom that gives it magnetic properties. In the simplest case, there are two possible values of spin: “spin down” can represent a 0 and “spin up” can represent a 1, providing the values that are needed for a qubit.</p><p>Spin is much more fragile than charge when you scale down to only one spin. In fact, for one spin, the subatomic makeup of silicon atoms becomes important — silicon always has 14 protons, but exists in three “isotopes,” i.e., it may have 14, 15 or 16 neutrons and still be silicon. When a silicon atom has 15 neutrons (silicon-29), then it acts like a tiny magnet, which disrupts the quantum information in a spin qubit. So, if we can isolate silicon-28 atoms (14 neutrons), eliminating silicon-29, then we can create a “semiconductor vacuum,” free from both electric and magnetic disturbance.</p>
|
||
<figure class=" align-right nist-image--lightbox nist-image" role="group">
|
||
<div data-lightbox="https://www.nist.gov/sites/default/files/styles/2800_x_2800_limit/public/images/pml/newsletter/silicon-deposition-chamber-1000_1.png?itok=p1ukiCtR" data-media-id="116791">
|
||
|
||
<img alt="silicon deposition chamber" height="452" loading="lazy" src="/sites/default/files/styles/480_x_480_limit/public/images/pml/newsletter/silicon-deposition-chamber-1000_1.png?itok=1fpBzvL-" typeof="foaf:Image" width="480">
|
||
|
||
|
||
|
||
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||
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||
|
||
</div>
|
||
<figcaption class="nist-image__caption">This glowing piece of silicon is being prepared in a custom UHV chamber for enriched silicon deposition and eventual fabrication of quantum information devices.<div class="nist-image__credit">
|
||
<span class="nist-image__credit-label">Credit:</span>
|
||
|
||
NIST
|
||
|
||
</div></figcaption>
|
||
</figure>
|
||
|
||
<p>Isolating, or “enriching,” silicon-28 to eliminate the pesky silicon-29 is the focus of a project I lead to discover what is needed for quantum silicon. During the past several years, our efforts have produced the world’s most highly enriched silicon, reducing the silicon-29 atoms from the 5% found in natural silicon to less than 0.00001% in our specimens. For context, this is about 100 times more enriched than the next best, which is silicon specially commissioned for the <a href="https://en.wikipedia.org/wiki/Alternative_approaches_to_redefining_the_kilogram#Avogadro_project">International Avogadro Project</a>. We have learned how to make single crystals from our enriched silicon, and then how to make capacitors, diodes and transistors, the basic components of computing. And while our enrichment techniques will not provide the silicon needed for a silicon quantum revolution, they can inform industry about how much enrichment is needed before very expensive enrichment plants are spun up.</p><p>How do we learn what enrichment is sufficient for quantum in silicon? Currently, that question can only be answered by making qubits, a long, risky path that is suboptimal. In our work, we seek to both answer that question and to develop measurements that are simpler and easier than making qubits to answer it in the future. As an example, in a <a href="/publications/use-quantum-effects-potential-qualifying-metrics-quantum-grade-silicon" data-entity-type="node" data-entity-uuid="0539a336-a4a1-490e-adae-7c53a06e1f54" data-entity-substitution="canonical" title="Use of quantum effects as potential qualifying metrics for "quantum grade silicon"">recent paper</a>, we measured the properties of electron motion in silicon transistors due to quantum effects and compared two specimens, a commercial wafer and highly enriched silicon grown here at the National Institute of Standards and Technology (NIST). We think these measurements could provide tests for a specimen’s material quality and also serve as early indicators during manufacturing of whether a process needs recalibrating before a whole production run is lost.</p><p>Unfortunately, though, to show that these simpler measurements can be used as guides, we also need to make and measure qubits, since new measurement approaches must be validated. So, now we are making the qubits needed to see if these simpler methods correlate with full-blown quantum measurements. With this full suite of tools, we can deliberately change how much silicon is enriched and explicitly determine how much benefit comes with different levels of enrichment.</p><p>Quantum makes everything harder! The materials requirements are harder, the fabrication demands are harder, and many of the measurements needed don’t even exist yet. Furthermore, we face the ultimate chicken-and-egg problem: How do you know you have made something if you can’t measure it, and how do you measure something if you can’t make it? Fortunately, this kind of challenge is NIST’s bread and butter, and with the contributions of thousands of scientists from NIST and elsewhere, quantum computation will become a reality … and then we can find out how close to optimal our path to making it was!</p>
|
||
|
||
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||
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||
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|
||
>
|
||
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||
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|
||
<div class="nist-tags">
|
||
|
||
<a href="/blogs/taking-measure/categories/248486">Electronics</a>,
|
||
<a href="/blogs/taking-measure/categories/248511">Semiconductors</a>,
|
||
<a href="/blogs/taking-measure/categories/249421">Information technology</a>,
|
||
<a href="/blogs/taking-measure/categories/248946">Materials</a>,
|
||
<a href="/blogs/taking-measure/categories/249241">Physics</a> and
|
||
<a href="/blogs/taking-measure/categories/249281">Quantum information science</a></div>
|
||
|
||
|
||
</div>
|
||
|
||
<div
|
||
class="nist-block"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>About the author</h2>
|
||
|
||
<div class="nist-field nist-field--label-hidden entity-reference">
|
||
<div class="nist-field__items">
|
||
<div class="nist-field__item">
|
||
|
||
<article
|
||
about="/blogs/taking-measure/authors/josh-pomeroy" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__image">
|
||
<div class="entity-reference"> <a href="/blogs/taking-measure/authors/josh-pomeroy" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2020/01/17/Josh%20Pomeroy.jpg?itok=4kKev6Vx" width="100" height="100" alt="portrait of Josh Pomeroy" typeof="foaf:Image" />
|
||
|
||
</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/blogs/taking-measure/authors/josh-pomeroy"><span>Josh Pomeroy</span>
|
||
</a></h3>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"><p><span><span>Josh Pomeroy has been an experimental physicist at the National Institute for Standards and Technology (NIST) since 2003. He performs fundamental research that seeks to understand how improvements in existing materials, device fabricated from those materials, and their processing can improve the performance of systems used in technology and metrology. He graduated from Cornell University with a Ph.D. in physics and received his undergraduate degree in physics from Boston University.</span></span></p></div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
</div>
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||
</div>
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||
|
||
|
||
</div>
|
||
<div
|
||
class="views-element-container nist-block no-print"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>Related posts</h2>
|
||
|
||
<div><div class="js-view-dom-id-591c824bc48165375794bdb557db52724c249adcc82e3cd783c767fc90eb8732">
|
||
|
||
|
||
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||
|
||
|
||
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||
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||
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||
<div>
|
||
|
||
<article
|
||
about="/blogs/taking-measure/high-flying-science-how-and-why-we-sent-refrigerator-halfway-space" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__image">
|
||
<div class="entity-reference"> <a href="/blogs/taking-measure/high-flying-science-how-and-why-we-sent-refrigerator-halfway-space" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2025/01/23/ephraim_gau_tes_balloon_in_air_012125.JPG?itok=vkGGerAo" width="75" height="100" alt="A rectangular box coated with reflective foil hangs from cables over a parking lot." typeof="foaf:Image" />
|
||
|
||
</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/blogs/taking-measure/high-flying-science-how-and-why-we-sent-refrigerator-halfway-space"><span>High-Flying Science: How and Why We Sent a Refrigerator Halfway to Space</span>
|
||
</a></h3>
|
||
<div class="nist-teaser__date">
|
||
<div class="daterange"><time datetime="2025-02-12T12:00:00Z">February 12, 2025</time>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> NIST-developed tools can study the remnants of the Big Bang and more, and now researchers are working to launch these tools high above the Earth’s atmosphere —
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
<div>
|
||
|
||
<article
|
||
about="/blogs/taking-measure/5-concepts-can-help-you-understand-quantum-mechanics-and-technology-without" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__image">
|
||
<div class="entity-reference"> <a href="/blogs/taking-measure/5-concepts-can-help-you-understand-quantum-mechanics-and-technology-without" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2023/10/16/tara_fortier_working_in_lab_october_2023.jpg?itok=RkM9HePP" width="100" height="67" alt="A researcher wearing safety glasses reaches into a box of circuitry and other equipment, which emits a green glow. " typeof="foaf:Image" />
|
||
|
||
</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/blogs/taking-measure/5-concepts-can-help-you-understand-quantum-mechanics-and-technology-without"><span>5 Concepts Can Help You Understand Quantum Mechanics and Technology — Without Math!</span>
|
||
</a></h3>
|
||
<div class="nist-teaser__date">
|
||
<div class="daterange"><time datetime="2025-02-05T12:00:00Z">February 5, 2025</time>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> Quantum is everywhere, and you can understand the basic quirks of life at the quantum level … no math required.
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
<div>
|
||
|
||
<article
|
||
about="/blogs/taking-measure/safer-skies-fewer-fires-10-ways-nist-impacts-your-daily-life" class="nist-teaser"
|
||
>
|
||
<div class="nist-teaser__image">
|
||
<div class="entity-reference"> <a href="/blogs/taking-measure/safer-skies-fewer-fires-10-ways-nist-impacts-your-daily-life" hreflang="en"><img loading="lazy" src="/sites/default/files/styles/thumbnail/public/images/2024/12/12/2024_EndofYearBlogPost_960x600_v1.png?itok=qqCEC65E" width="100" height="63" alt="Photos of everyday objects like an iron, a gas can and a laptop along with high-tech items like an atomic clock and a mass balance. Label reads: 10 Ways NIST Impacts Your Daily Life. " typeof="foaf:Image" />
|
||
|
||
</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class="nist-teaser__content-wrapper">
|
||
<header>
|
||
<h3 class="nist-teaser__title"><a href="/blogs/taking-measure/safer-skies-fewer-fires-10-ways-nist-impacts-your-daily-life"><span>From Safer Skies to Fewer Fires: 10 Ways NIST Impacts Your Daily Life</span>
|
||
</a></h3>
|
||
<div class="nist-teaser__date">
|
||
<div class="daterange"><time datetime="2024-12-19T12:00:00Z">December 19, 2024</time>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</header>
|
||
<div class="nist-teaser__content">
|
||
<div class="text-with-summary"> If you’ve ever had a medical test, flown on an airplane, or needed to check the time, NIST’s work affects your life every day.
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
|
||
<div
|
||
class="nist-block no-print"
|
||
>
|
||
|
||
<h2
|
||
class="nist-block__title"
|
||
>Comments</h2>
|
||
|
||
<section>
|
||
|
||
|
||
|
||
|
||
<article data-comment-user-id="0" id="comment-91006" class="nist-comment js-comment">
|
||
|
||
|
||
<footer class="nist-comment__info">
|
||
<p class="submitted">
|
||
<span class="nist-comment__author"><span lang="" typeof="schema:Person" property="schema:name" datatype="">AJSki</span></span>
|
||
on
|
||
<span class="nist-comment__date">February 25, 2020 10:37 AM</span>
|
||
<mark class="hidden nist-comment__new" data-comment-timestamp="1582645551"></mark>
|
||
</p>
|
||
|
||
<div class="nist-comment__permalink"><a href="#comment-91006">Permalink</a></div>
|
||
|
||
</footer>
|
||
|
||
<div class="nist-comment__content">
|
||
<div class="text-long"><p>Excellent explanation for "the rest of us". ;) Fascinating, exciting, and scary all at the same time. It's like a quantum-emotion! Thanks for the excellent article and best of luck in your/our pursuits.</p>
|
||
</div>
|
||
|
||
<ul class="links inline nist-comment__links">
|
||
<li class="comment-reply nist-comment__link">
|
||
<a href="/comment/reply/node/1609151/comment_node_blog/91006">Reply</a></li></ul>
|
||
</div>
|
||
|
||
|
||
|
||
</article>
|
||
|
||
|
||
|
||
<article data-comment-user-id="0" id="comment-91011" class="nist-comment js-comment">
|
||
|
||
|
||
<footer class="nist-comment__info">
|
||
<p class="submitted">
|
||
<span class="nist-comment__author"><span lang="" typeof="schema:Person" property="schema:name" datatype="">Bob Umberger</span></span>
|
||
on
|
||
<span class="nist-comment__date">February 25, 2020 11:14 AM</span>
|
||
<mark class="hidden nist-comment__new" data-comment-timestamp="1582647610"></mark>
|
||
</p>
|
||
|
||
<div class="nist-comment__permalink"><a href="#comment-91011">Permalink</a></div>
|
||
|
||
</footer>
|
||
|
||
<div class="nist-comment__content">
|
||
<div class="text-long"><p>As a former software developer, I know the quantum problem has been around forever. When I first started as a developer in 1968, I was taught with a "truth table," that is, a graph of a number of conditions that could be based on binary responses (e.g. true or false). The method was fine for a small number of conditions. As soon as other types of responses were applied, that table was no longer a valid tool; I think it was by the end of the week.</p>
|
||
</div>
|
||
|
||
<ul class="links inline nist-comment__links">
|
||
<li class="comment-reply nist-comment__link">
|
||
<a href="/comment/reply/node/1609151/comment_node_blog/91011">Reply</a></li></ul>
|
||
</div>
|
||
|
||
|
||
|
||
</article>
|
||
|
||
|
||
|
||
<article data-comment-user-id="0" id="comment-91021" class="nist-comment js-comment">
|
||
|
||
|
||
<footer class="nist-comment__info">
|
||
<p class="submitted">
|
||
<span class="nist-comment__author"><span lang="" typeof="schema:Person" property="schema:name" datatype="">Bob Bastani</span></span>
|
||
on
|
||
<span class="nist-comment__date">February 25, 2020 11:28 AM</span>
|
||
<mark class="hidden nist-comment__new" data-comment-timestamp="1582648210"></mark>
|
||
</p>
|
||
|
||
<div class="nist-comment__permalink"><a href="#comment-91021">Permalink</a></div>
|
||
|
||
</footer>
|
||
|
||
<div class="nist-comment__content">
|
||
<div class="text-long"><p>Fascinating, thank you.</p>
|
||
<p>I must admit that I found the jump to "modifying conventional silicon transistor technology to host quantum computation seems like the best way forward" to abrupt. I am still thinking about solving the package delivery problem with quantum algorithm :-)</p>
|
||
</div>
|
||
|
||
<ul class="links inline nist-comment__links">
|
||
<li class="comment-reply nist-comment__link">
|
||
<a href="/comment/reply/node/1609151/comment_node_blog/91021">Reply</a></li></ul>
|
||
</div>
|
||
|
||
|
||
|
||
</article>
|
||
|
||
|
||
|
||
<article data-comment-user-id="0" id="comment-91026" class="nist-comment js-comment">
|
||
|
||
|
||
<footer class="nist-comment__info">
|
||
<p class="submitted">
|
||
<span class="nist-comment__author"><span lang="" typeof="schema:Person" property="schema:name" datatype="">DelynGJ</span></span>
|
||
on
|
||
<span class="nist-comment__date">February 25, 2020 11:31 AM</span>
|
||
<mark class="hidden nist-comment__new" data-comment-timestamp="1582648367"></mark>
|
||
</p>
|
||
|
||
<div class="nist-comment__permalink"><a href="#comment-91026">Permalink</a></div>
|
||
|
||
</footer>
|
||
|
||
<div class="nist-comment__content">
|
||
<div class="text-long"><p>I have been away from the informational science field for quite sometime. I trycto stay current on today's technology via the internet and it's myriad of sources. Your article on quantum physics / silicone technology was fascinating and quite interesting. I've considered getting my masters degree to revitalize my abilities and possibilities to enter the field to do research and development. Your article inspires me to move forward. Thank you for keeping in straightforward yet evolutionary.</p>
|
||
</div>
|
||
|
||
<ul class="links inline nist-comment__links">
|
||
<li class="comment-reply nist-comment__link">
|
||
<a href="/comment/reply/node/1609151/comment_node_blog/91026">Reply</a></li></ul>
|
||
</div>
|
||
|
||
|
||
|
||
</article>
|
||
|
||
|
||
|
||
<article data-comment-user-id="0" id="comment-91031" class="nist-comment js-comment">
|
||
|
||
|
||
<footer class="nist-comment__info">
|
||
<p class="submitted">
|
||
<span class="nist-comment__author"><span lang="" typeof="schema:Person" property="schema:name" datatype="">Trent</span></span>
|
||
on
|
||
<span class="nist-comment__date">February 25, 2020 1:18 PM</span>
|
||
<mark class="hidden nist-comment__new" data-comment-timestamp="1582668649"></mark>
|
||
</p>
|
||
|
||
<div class="nist-comment__permalink"><a href="#comment-91031">Permalink</a></div>
|
||
|
||
</footer>
|
||
|
||
<div class="nist-comment__content">
|
||
<div class="text-long"><p>Pleasurable read. Keep up the good work!</p>
|
||
</div>
|
||
|
||
<ul class="links inline nist-comment__links">
|
||
<li class="comment-reply nist-comment__link">
|
||
<a href="/comment/reply/node/1609151/comment_node_blog/91031">Reply</a></li></ul>
|
||
</div>
|
||
|
||
|
||
|
||
</article>
|
||
|
||
|
||
|
||
<article data-comment-user-id="0" id="comment-91036" class="nist-comment js-comment">
|
||
|
||
|
||
<footer class="nist-comment__info">
|
||
<p class="submitted">
|
||
<span class="nist-comment__author"><span lang="" typeof="schema:Person" property="schema:name" datatype="">Jim Shotwell</span></span>
|
||
on
|
||
<span class="nist-comment__date">February 25, 2020 5:08 PM</span>
|
||
<mark class="hidden nist-comment__new" data-comment-timestamp="1582668642"></mark>
|
||
</p>
|
||
|
||
<div class="nist-comment__permalink"><a href="#comment-91036">Permalink</a></div>
|
||
|
||
</footer>
|
||
|
||
<div class="nist-comment__content">
|
||
<div class="text-long"><p>Maybe crazy enough to work but in a backwards manner. The following is simply a draw against the deposits within the Infinity Bank of Common Sense. Nothing more.</p>
|
||
<p>For example: Spin up can represent the Required Value 1, as applied it spins up/out so if countermanded through use of an element or method enabling a reflection as a down(downward or back as an image in a mirror) spin = to 0. The challenge of pesky silicon 29 my be eliminated.</p>
|
||
</div>
|
||
|
||
<ul class="links inline nist-comment__links">
|
||
<li class="comment-reply nist-comment__link">
|
||
<a href="/comment/reply/node/1609151/comment_node_blog/91036">Reply</a></li></ul>
|
||
</div>
|
||
|
||
|
||
|
||
</article>
|
||
|
||
|
||
|
||
<article data-comment-user-id="0" id="comment-91061" class="nist-comment js-comment">
|
||
|
||
|
||
<footer class="nist-comment__info">
|
||
<p class="submitted">
|
||
<span class="nist-comment__author"><span lang="" typeof="schema:Person" property="schema:name" datatype="">Željko Perić</span></span>
|
||
on
|
||
<span class="nist-comment__date">February 26, 2020 11:34 AM</span>
|
||
<mark class="hidden nist-comment__new" data-comment-timestamp="1582735070"></mark>
|
||
</p>
|
||
|
||
<div class="nist-comment__permalink"><a href="#comment-91061">Permalink</a></div>
|
||
|
||
</footer>
|
||
|
||
<div class="nist-comment__content">
|
||
<div class="text-long"><p>As a software developer,<br />
|
||
until real computer with quantum processor gets in front of me and I actually make some program on it, to see measurable results, this information means nothing to me except some sort of science fiction.</p>
|
||
<p>All the best,<br />
|
||
Željko</p>
|
||
</div>
|
||
|
||
<ul class="links inline nist-comment__links">
|
||
<li class="comment-reply nist-comment__link">
|
||
<a href="/comment/reply/node/1609151/comment_node_blog/91061">Reply</a></li></ul>
|
||
</div>
|
||
|
||
|
||
|
||
</article>
|
||
|
||
|
||
|
||
<article data-comment-user-id="0" id="comment-91066" class="nist-comment js-comment">
|
||
|
||
|
||
<footer class="nist-comment__info">
|
||
<p class="submitted">
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<span class="nist-comment__author"><span lang="" typeof="schema:Person" property="schema:name" datatype="">jkkk</span></span>
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on
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<span class="nist-comment__date">February 26, 2020 10:57 PM</span>
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<div class="text-long"><p>ok fine</p>
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