Articles about quantum physics

drawing of live cat and cat skeleton

Forget the 'simulated universe', say boffins, no simulator could hit the required scale

That “we live in a simulation" trope being advanced by Elon Musk and some folk on the fringes of science? Fuggeddaboutit, because it's impossible to build a simulator that would reproduce what humans already know about quantum systems. That's the confident conclusion drawn from a paper that revels in the title “Quantized …
Bones, Kirk and Spock prepare to transport in Star Trek

NIST's quantum boffins have TELEPORTED stuff over a HUNDRED KILOMETRES

Boffins at the US National Institute of Standards and Technology (NIST), collaborating with Japan's Nippon Telegraph and Telephone Corporation (NTT), have quadrupled the farthest distance quantum information has been "teleported". Quantum teleportation, of course, is not a matter of making physical matter dematerialise and …
Layout of IBM's four superconducting quantum bit device. Using a square lattice, IBM is able to detect both types of quantum errors for the first time. This is the best configuration to add more qubits to scale to larger systems. (Credit: IBM Research)

Big Blue boffins claim quantum computing measurement leap

+Vid IBM has claimed major breakthroughs in quantum computing after boffins in Big Blue's lab demonstrated the ability to simultaneously detect and measure bit-flip and phase-flip quantum errors for the first time. Additionally, they revealed a new, square quantum bit circuit design that, the researchers believe, is "the only …
Kelly Fiveash, 29 Apr 2015
Stanford concept graphic indicating quantum electron interference holograms

UK.gov shovels £15m into training new quantum engineers

The government is flinging £15m at training "the next generation" of quantum engineers through investment in "skills hubs". Implicitly suggesting the existence of a current generation of quantum engineers, the Department of BIS hopes the investment will support the building of "innovative new products like 6G smartphones." As …
The quantum cheshire cat

Boffins spot weirder quantum capers as neutrons take the high road, spin takes the low

Imagine this: when Australian cricketer Shane Warne bowled “the ball of the century”, a delivery that drifted one way, then hit the pitch and spun the other, the reason batter Mike Gatting was bamboozled was because the spin took a different path from the ball. That's the phenomenon boffins claim they've observed in experiments …
Illustration of Barak Dayan's photonic router

New photonic router works by flipping reflective atom's lid

Quantum boffins from Israel's Weizmann Institute have demonstrated a two-input/two-output router that works entirely with single photons – no electronics required. It's not the first time a photonic router has been demonstrated, but what's different about the Israeli work is that everything is photonic: the device has two …

MIT wants quasars to help put free will to rest

The last of three loopholes held to remain in Bell's Theorem, “setting independence”, is under the spotlight with an MIT research group saying that quasars could be used as random number generators and help prove* the validity of quantum mechanics. (*The Register is well aware that quantum mechanics has withstood the most …
The Register breaking news

Quantum boffins send data ACROSS TIME AND SPACE

Researchers in Israel have pulled a trick that makes quantum physics seem even stranger than an episode of Doctor Who – they've created a pair of photons that was briefly entangled not across space, but across time. The last time El Reg discussed time-like entanglement it was being proposed as a theoretical construct. The idea …
Apple iPad 4

Chinese boffins predict iPad-sized supercomputers

Chinese boffins are predicting iPad-shaped supercomputers could become a reality after observing for the first time a phenomenon known as the quantum anomalous Hall (QAH) effect, which could pave the way for a new generation of low energy-consumption electronics. The QAH effect has never been observed in a laboratory …
Phil Muncaster, 12 Apr 2013
The Register breaking news

'Quantum fridge' gets close to absolute zero

NIST scientists have demonstrated a solid state refrigerator that sucks energy out of objects using a trick of quantum physics in which hot electrons tunnel through a one-way junction, carrying heat with them. It's been a long project: NIST first demonstrated the use of NIS (normal metal / insulator / superconductor) junctions …
The Register breaking news

Bacterial quantum tricks could help solar power

The ocean-dwelling Green Sulphur Bacteria should be interesting without outside help: it can, after all, live at depth of 2,000 meters and still harvest enough energy from light to survive and reproduce. Now, researchers at Cambridge University have found that the little microbe has another interesting characteristic: its …
Berkenstein's quantum foam bench test

The secrets of spacetime revealed - on your workbench!

Laser source? Check. Lenses? Check. A suspended block of glass? Check. A single-photon detector? Check. Supercooling apparatus? Check. Congratulations: put that kit together, and you might be able to help resolve some of the most fundamental questions of quantum physics. OK, it might not be within reach of the backyard …
Four dimensional tic tac toe

Berkeley Lab proposes 4D clock

It’s not quite a perpetual motion machine: scientists at the US Lawrence Berkeley National Laboratory have proposed a design for a timing crystal they say would theoretically outlast the universe. In this paper, published on Arxiv, the researchers propose a design for "a 4D crystal that has periodic structures in both space …
The Register breaking news

ANU scientists in a record-breaking tangle

A group of ANU researchers says it’s taken a step towards usable quantum communications with a setup that creates eight entangled modes from a single beam, doubling the world’s previous record. The “easiest” (since entanglement isn’t so easy to create) way to create entanglement – and therefore lay the basis for quantum …

Glaswegian scientists snap entangled particles

A group of physicists at the University of Glasgow is claiming a first: taking photos of entangled photons. In this paper in Nature (hooray for free access!), they explain that their 201 x 201 pixel images captured around 2,500 different entangled quantum states. The entangled photons were imaged using different lens …
Dr Who Tardis

Qubits turn into time travellers

A group of scientists from Spain’s Institute of Fundamental Physics has made the world just that little bit more weird, proposing a form of quantum entanglement that spans not just space, but time. Physics followers will already be familiar with entanglement across space: two quanta (a pair of photons is a handy example) that …
Google's recommended Street View view of the Canary Islands

Canary Islands host long-distance quantum teleportation

The Canary Islands of La Palma and Tenerife have been briefly connected by a quantum teleportation system that sets a new distance record for the spooky communications technique. In an angle that will get Trekkie bloggers reaching for the “beam me up” metaphors, the researchers, from Austria, Germany, Canada and Norway, hope …

Quantum computing comes closer as diamonds get spooky

International boffins are chuffed today to publish cunning research in which they demonstrate quantum entanglement - the "spooky action at a distance" so disliked by Einstein - between a pair of small synthetic diamonds: and, this is the clever bit, at room temperature rather than in a cryogenic chamber or similar, so bringing …
Lewis Page, 2 Dec 2011

Create a news alert about quantum physics, or find more stories about quantum physics.

Biting the hand that feeds IT © 1998–2018