Quantum computing company Quantum recently announced a quantum computer that is said to surpass Google’s historical computing results by a factor of 100.
Google’s 2019 results used a special test called the linear cross-entropy criterion to prove this Quantitative superiorityThe point at which quantum computers surpass modern regular (or classical) computers.
what exactly he How many computers?
Quantum computers work with quantum bits. Quantum bits are similar to ordinary bits in computers, except that their values ​​can be 0 and 1 at the same time. Thanks to this quantum property, computers can find solutions to problems faster than classical computers. Ultimately, quantum computers should be able to solve problems that classical computers cannot.
But quantum computers do not look like ordinary computers. This is because their qubits are often supercooled atoms arranged in a row. Atoms enter a quantum state when cooled to this temperature. As soon as a qubit is determined, the quantum state loses its coherence and the quantum process breaks down. For this reason, currently existing quantum computers can only be found in dedicated research and laboratory environments.
What did Quantum Computer Quantum do?
Beyond quantum computers An important breakthrough in 2019 With Google’s Sycamore processor, it took about 200 seconds to complete a task that would take a classic high-end supercomputer about 10,000 years to complete.
To achieve this result, the Quantinum team upgraded the H2-1 processor from a 32-qubit system to a 56-qubit system, significantly increasing its computing power. According to a statement from Quantum, its quantum computer runs its algorithms using about 30,000 times less energy than a classical computer to perform the process.
Notably, the quantum computer achieved a new record for cross entropy, a metric used to compare the performance of different quantum computers. The standard measures the performance of a quantum system; The louder the system, the worse your results will be (closer to zero than 1). Google’s cross-entropy benchmark score for 2019 was ~0.002; The H2-1 score was ~.35. “Contrary to previous announcements regarding the XEB experiment, 35% is a significant step toward the ideal accuracy limit of 100%, with the computational advantages of quantum computers clearly on the horizon,” said the Quantum member. get started. The party Research It is currently hosted on the arXiv preprint server.
What else does a quantum computer do?
Quantum computers are testbeds for the future of information—the way people store and transmit data and compute new information. Last year, another group of researchers showed how quantum computers can perform calculations that closely resemble time travel.
At the time, David Arvidsson-Shukur, a quantum physicist at the University of Cambridge and lead author of the study, told Gizmodo: “The experiment we describe seems impossible to solve using standard physics (not quantum physics), which follows natural arrows. So it seems that quantum entanglement can only create conditions that actually look like time travel.
Last year, another team claimed to have created a quantum wormhole – a portal through which quantum information can pass instantaneously.
Quantinum also (unintentionally) directed news broadcasts. In 2022, a team using a quantum computer was able to create a new phase of matter by bombarding quantum bits with a laser to read the Fibonacci sequence.
Quantum computing may seem like science fiction because it seems so strange when we use a world outside of classical physics to perform complex calculations. But the systems are constantly improving and their potential uses are diverse (although some of them are almost dreams). At the moment it is limited to research environments, but quantum computers are already slowly building the world of tomorrow.
