Category: Computers

Shor’s most famous algorithm proposes using qubits to “factor” very large numbers into smaller components. I asked him to explain how it works, and he erased the hexagons from the chalkboard. The key to factoring, Shor said, is identifying prime numbers, which are whole numbers divisible only by one and by themselves. (Five is prime. Six, which is divisible by two and by three, is not.) There are twenty-five prime numbers between one and a hundred, but as you count higher they become incre…….

Shor’s most famous algorithm proposes using qubits to “factor” very large numbers into smaller components. I asked him to explain how it works, and he erased the hexagons from the chalkboard. The key to factoring, Shor said, is identifying prime numbers, which are whole numbers divisible only by one and by themselves. (Five is prime. Six, which is divisible by two and by three, is not.) There are twenty-five prime numbers between one and a hundred, but as you count higher they become incre…….

Shor’s most famous algorithm proposes using qubits to “factor” very large numbers into smaller components. I asked him to explain how it works, and he erased the hexagons from the chalkboard. The key to factoring, Shor said, is identifying prime numbers, which are whole numbers divisible only by one and by themselves. (Five is prime. Six, which is divisible by two and by three, is not.) There are twenty-five prime numbers between one and a hundred, but as you count higher they become incre…….

A computer that uses light rather than electricity to transmit and manipulate data could carry out the same tasks faster and using less power

Technology

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In a new breakthrough, scientists at the U.S. Department of Energy’s Fermilab have found a way to detect dark matter using quantum computers.
Dark matter makes up about 27% of the matter and energy budget in the universe, but scientists do not know much about it. They do know that it is cold, meaning that the particles that make up dark matter are slow-moving. It is also difficult to detect dark matter directly because it does not interact with light. However, scientists at the U.S. Departmen…….

I first spoke with Cory Doctorow two years ago. I was trying to get a handle on the sci-fi genre known as cyberpunk, most famously associated with the work of William Gibson. (It also served as the inspiration for a recent video game, Cyberpunk 2077, which had a famously tumultuous rollout.) Doctorow, who is often described as a post-cyberpunk writer, is both a theorist-practitioner of science fiction and a vigorous commentator on technology and policymaking; his answers to my questions were lon…….

An artistic representation of the quantum-teleportation experiment.
Physicists have used a quantum computer to perform a new kind of quantum teleportation, the ability of quantum states to be transported between distant places, as though information could travel instantly. Although teleportation is an established technique in quantum technology, the purpose of the latest experiment was to simulate the behaviour of a passage called a ‘wormhole’ through a virtual univer…….

For the first time, researchers at MIT, Caltech, Harvard University, and elsewhere sent quantum information across a quantum system in what could be understood as traversing a wormhole. Though this experiment didn’t create a disruption of physical space and time in the way we might understand the term “wormhole” from science fiction, calculations from the experiment showed that qubits traveled from one system of entangled particles to another in a model of gravity……..

For the first time, researchers at MIT, Caltech, Harvard University, and elsewhere sent quantum information across a quantum system in what could be understood as traversing a wormhole. Though this experiment didn’t create a disruption of physical space and time in the way we might understand the term “wormhole” from science fiction, calculations from the experiment showed that qubits traveled from one system of entangled particles to another in a model of gravity……..

For years, quantum computing has seemed like the stuff of science fiction. But the truth is that quantum computing is here and it’s more accessible to organizations than you think. And while the technology is still in its infancy, it is advancing fast.In a recent interview, Ken Durazzo, vice president of Dell Technologies’ OCTO Research Office, explained, “There is a race toward quantum.” In the very near future, the computational capabilities of quantum will be widely available to acce…….