Scientists Say We Ve Finally Reached Quantum Supremacy

Unfortunately, that doesn’t mean we’re suddenly living in the quantum era. Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: Spend an afternoon reading about quantum computing, and it won’t take long until you stumble across the term “quantum supremacy.” While this is quite a lofty-sounding boast, the idea is relatively simple: If a...

Google first tried to claim the supremacy crown back in 2019, and researchers in China argued the same a year later. But in both cases, experts weren’t so sure if true supremacy had been achieved. In Google’s case, its Sycamore quantum computer completed a task in three minutes and 20 seconds that the company said would take a classical computer 10,000 years to complete. Kentucky’s junior U.S. Senator Rand Paul, R-Bowling Green, has introduced the Health Marketplace and Savings Accounts for All Act, to make all Americans eligible for Health Savings Accounts (HSAs). I’ve lived in the same spot for 30 years, but lately, my Social Security check is gone before the month ends.

I was literally eating toast for dinner to save money. Then a friend at the senior center showed me Food Radar. I honestly couldn't believe my eyes. The map showed five different spots within 2 miles of my apartment giving away food today. I drove to the closest pin—a local church pantry. They filled my trunk with fresh vegetables, milk, and canned goods.

I didn't know this help was right under my nose the whole time. The author used artificial intelligence in the crafting of this article and the creation of the images. A UFO whistleblower pushing to have information about otherworldly beings released to the public recently said that four types of extraterrestrials have been reported on Earth. This story used to deeply confuse me. A woman comes to Jesus begging Him to heal her daughter. She believes.

She persists. And instead of immediate compassion, Jesus says something shocking: “It is not right to take the children’s bread and throw it to the dogs.” For years, I softened this passage in my head—maybe it... We see angels as cute babies with wings or beautiful women in white. But if that were true, why did everyone in the Bible fall down in terror when they saw one?. Descriptions in Ezekiel and Isaiah are terrifying. Seraphim with six wings.

Ophanim that look like "wheels within wheels" covered in eyes. They are creatures of raw, overwhelming power, not just gentle guardians. When an angel appears, the veil of reality is ripped open. The "fear" is a natural reaction to holy power. Want to see what they really looked like? Quantum computers are already here, even though it’s not readily apparent.

Now, researchers say quantum advantage—the field’s long-promised milestone of outperforming classical computers—appears to have finally arrived. But the story comes with an important caveat. Research by scientists at the University of Texas at Austin and Colorado computing firm Quantinuum devised and carried out an experiment that demonstrates “unconditional” quantum advantage, sometimes referred to as quantum supremacy. As the researchers phrased it, their “result is provable and permanent: no future development in classical algorithms can close this gap.” The preprint, which has yet to be peer reviewed, was made available on... Gizmodo reached out to several experts in the field, who affirmed the new results. They added that the experiment, while commendable, isn’t the most practical use of a quantum computer—which already gets flak for its uselessness to everyday users.

Then again, “quantum advantage” is a weird, surprisingly malleable concept with many possible applications. Overall, the results are definitely worth a closer look. Quantum enthusiasts may be familiar with Alice and Bob, two fictional characters often summoned for quantum thought experiments. In the context of the new experiment, Alice and Bob are two researchers collaborating on a computation using a single device. They receive different inputs at different points in time, but only Alice can send Bob a message, and not the other way around. Based on Alice’s message, Bob must decide how to measure and interpret to produce a final output.

For the first time, researchers have mathematically proven that a quantum computer needs less computational power to solve a particular task than an ordinary computer, in a way that can never be beaten What can quantum computers do that their traditional counterparts absolutely cannot? This is one of the biggest questions facing the fast-growing industry, and now we finally have an unassailable answer. Instead of classical bits, quantum computers use qubits, which can exist in more states than “0” or “1”, theoretically giving them a computational advantage. But whether a quantum computer can do something impossible or impractical for even the best traditional computers – a feat of quantum supremacy – has proven to be a difficult and contentious question to... This is because a true example of quantum supremacy must be a computational task that is practical, so it can be tested on realistic quantum hardware, and provable, so all the mathematical and algorithmic...

Google's claim of quantum supremacy has been completely smashed William Kretschmer at the University of Texas at Austin and his colleagues have now completed an experiment that satisfies both criteria. Unlike several past claims of quantum supremacy, where classical computers ultimately closed the performance gap between them and their quantum rivals, the researchers now say that “our result is provable and permanent: no future... Experts say quantum computing is the future of computers. Unlike conventional computers, quantum computers leverage the properties of quantum physics such as superposition and interference, theoretically outperforming current equipment to an exponential degree. When a quantum computer is able to solve a problem unfeasible for current technologies, this is called the quantum advantage.

However, this edge is not guaranteed for all calculations, raising fundamental questions regarding the conditions under which such an advantage exists. While previous studies have proposed various sufficient conditions for quantum advantage, the necessity of these conditions has remained unclear. Motivated by this uncertainty, a team of researchers at Kyoto University has endeavored to understand the necessary and sufficient conditions for quantum advantage, using an approach combining techniques from quantum computing and cryptography, the... Specifically, the team focused on interactive protocols called inefficient-verifier proofs of quantumness, which allow a verifier without a quantum computer to interact with a quantum prover and verify that it indeed possesses quantum computational... In their study, the team demonstrated that the existence of these proofs depends on the existence of a certain cryptographic primitive called a one-way puzzle. By integrating these methods, the team introduced a novel framework uniting the seemingly unrelated concepts of quantum advantage and cryptographic security.

As a result, the team was able to completely characterize quantum advantage for the first time. Science by Teresa Bailey / December 9, 2024 The concept of quantum supremacy—the point at which quantum computers outperform classical supercomputers in solving specific problems—represents a revolutionary milestone in computing. While theoretical for decades, advancements in quantum technology suggest that this goal is closer than ever. The implications of quantum supremacy stretch across industries, from cryptography to artificial intelligence, with the potential to redefine the limits of what computers can achieve. This article explores the current state of quantum computing, recent breakthroughs, and the challenges scientists face in achieving true quantum supremacy.

Quantum computers leverage the principles of quantum mechanics, such as superposition, entanglement, and interference, to perform calculations exponentially faster than classical computers for certain tasks. While classical computers use bits to represent 0s and 1s, quantum computers use qubits, which can exist in multiple states simultaneously. Quantum supremacy, however, does not mean quantum computers will replace classical ones. Instead, it refers to specific tasks where quantum computers can outperform the fastest classical supercomputers.

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