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Quantum World
TOP STORY
Anyons: The breakthrough quantum computing needs?

Anyons: The breakthrough quantum computing needs?

They started out as a quantum flight of fancy, but these strange particles may just bring quantum computing into the real world, says Don Monroe
EXPERT GUIDE
Instant Expert: Quantum World

If successful scientific theories can be thought of as cures for stubborn problems, quantum physics was the wonder drug of the 20th century. It successfully explained phenomena such as radioactivity and antimatter, and no other theory can match its description of how light and particles behave on small scales.
But it can also be mind-bending. Quantum objects can exist in multiple states and places at the same time, requiring a mastery of statistics to describe them. Rife with uncertainty and riddled with paradoxes, the theory has been criticised for casting doubt on the notion of an objective reality - a concept many physicists, including Albert Einstein, have found hard to swallow.
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ARTICLES
Physics Nobel snubs key researcher
Three particle physicists who provided insights into the nature of the universe share this year's Nobel Prize, but a fourth colleague is inexplicably left out
Breaking News - 07 October 2008
Anyons: The breakthrough quantum computing needs?
They started out as a quantum flight of fancy, but these strange particles may just bring quantum computing into the real world, says Don Monroe
Features - 01 October 2008
Quantum strangeness breaks the light barrier
When entangled quantum particles signal one another, the signals move at least 10,000 times faster than light
News - 13 August 2008
First successful test of most powerful accelerator
Protons have travelled for 3 kilometres around the 27 km ring of the Large Hadron Collider at CERN
News - 13 August 2008
World's most powerful accelerator set to switch on
The first protons will be accelerated to near-light speeds at the Large Hadron Collider on 10 September
Breaking News - 07 August 2008
Nocturnal satellite could spot strange solar particles
Exotic particles called axions coming from the Sun could be detected by a satellite hiding behind Earth
News - 06 August 2008
Antimatter and matter don't always go bang
It seems antimatter can bounce off matter – the finding could help in the search for regions of antimatter in our galaxy
News - 04 August 2008
Awaiting a messenger from the multiverse
If we switch everything off and wait quietly, a very important particle might come out to play. Stephen Battersby is on tenterhooks
Features - 21 July 2008
To silence a gene, join the quantum dots
Quantum dots – tiny pieces of semiconductor – turn out to be extremely good at making deliveries inside living cells
Technology - 07 July 2008
How a quantum effect is gumming up nanomachines
Overcoming an enigmatic force that makes microscopic components hug each other could boost the nanotechnology revolution
Technology - 28 June 2008
Photon counter lets quantum messages go the distance
A device that counts photons individually will help to greatly extend the range of networks that send encrypted quantum communications
Technology - 18 June 2008
Quantum camera snaps objects it cannot 'see'
"Ghost imaging" can photograph an object using light that didn't touch it - but physicists can't agree on the effect that makes it possible
Breaking News - 02 May 2008
Four radical routes to a theory of everything
Want an ultimate theory of the universe? There's no shortage of weird and wonderful ideas, as Amanda Gefter discovers
Features - 02 May 2008
Quantum effects may explain water's weirdness
Water's properties still defy explanation – now it seems some of the uncertainty about H2O can be addressed by considering uncertainty of the quantum kind
News - 30 April 2008
Do birds see with quantum eyes?
A quantum trick might be behind birds' ability to navigate using Earth's magnetic field lines, say researchers
News - 03 May 2008
Comment: Hunting the elusive Higgs
Finding the Higgs particle would be great, but not finding it could be even better
Comment and Analysis - 19 April 2008
The great antimatter mystery
When the universe was born antimatter was just as plentiful as matter. What happened to change that? Physicists Helen Quinn and Yossi Nir investigate
Features - 11 April 2008
Quantum effects could shed light on hazy images
The way that entangled photons are linked could be used to screen out noise from scientific images of things like microscopic structures
News - 29 March 2008
Quantum randomness may not be random
The quantum universe may seem random, but a closer look may reveal that it is actually predictable, says Mark Buchanan
Features - 22 March 2008
Japanese particle accelerator hints at 'new physics'
The accelerator detected differences in how various particles decay that might help explain why the universe has more matter than antimatter
Breaking News - 19 March 2008
Flipping particle could explain missing antimatter
The way that a particle jumps between matter and antimatter in collider experiments could point to new physics
News - 18 March 2008
Interview: Beyond the BlackBerry
Mike Lazaridis, the man behind the top-selling BlackBerry, is pumping his millions into blue-sky quantum physics research. He tells Paul Marks why quantum physics is essential to the future of consumer electronics
Interview - 12 March 2008
How to 'see' quantum entanglement
A standard experiment could allow humans to "see" quantum entanglement without any aids
News - 23 February 2008
Black hole event horizon created in the lab
Scientists claim to have sent lasers through an optical fibre and simulated conditions inside a black hole, a development that could allow previously impossible experiments
News - 16 February 2008
Was life forged in a quantum crucible?
The notion that quantum processes kick-started life may not be so far fetched after all
News - 08 December 2007
Histories: Einstein's convenient untruths
Before physicist Emil Rupp was finally exposed as a cheat in the 1930s, Einstein's letters reveal his suspicions - and why he collaborated with Rupp regardless
Histories - 17 November 2007
Watchful eye keeps quantum computing on the boil
Particles must stay entangled in a quantum computer or its computing power evaporates – observation could be the solution
News - 11 November 2007
'Quantum ATM' rules out fraudulent web purchases
A "quantum key" passed from the ATM to a cellphone could make it impossible for someone to use your credit card to make fraudulent transactions online
Technology - 10 November 2007
China special: Quantum revolution
The computers that will leave today's PCs in their dust are being dreamed up in China
Features - 07 November 2007
'Light trap' is a step towards quantum memory
Two teams manage to place a cloud of cold gas within a tiny optical cavity – a combination that has potential for storing quantum data
Breaking News - 07 November 2007
Quantum untanglement: Is spookiness under threat?
Quantum mechanics without the weirdness? Traditional physics restored to glory? It all sounds too good to be true
Features - 02 November 2007
Could quantum effects explain consciousness?
Quantum mechanics could underpin conscious experience in the brain – and explain why dreams are dream-like
News - 23 October 2007
'Half-quantum' cryptography promises total security
Sharing an encryption key securely is possible even if one party remains firmly rooted in the world of classical physics
Technology - 21 October 2007
Universe explained by quantum randomness
The immense amount of information in the universe today arose as a result of quantum fluctuations, says a US researcher
News - 08 October 2007
Quantum transport poses a dilemma for philosophers
Physicists find a way to get quantum particles to jump from A to C without passing through B in the middle
News - 02 October 2007
Superconducting bus heralds quantum chip
Factory lines that churn out quantum computers move a step closer with entangled qubits exchanging data on a chip
Technology - 29 September 2007
Parallel universes make quantum sense
Key equations of quantum mechanics arise from the mathematics of parallel universes, supporting a theory of the 'multiverse'
News - 21 September 2007
Blueprints drawn up for quantum computer RAM
Physicists have come up with a method for retrieving quantum information that they say will make total recall more reliable
Breaking News - 21 August 2007
Spooks in space
The possibility of conscious beings popping up in space has cosmologists rethinking the fate of the universe
Features - 17 August 2007
Photons flout the light speed limit
A quantum tunnelling experiment has apparently propelled photons faster than the speed of light
News - 17 August 2007
Fermilab hot on Higgs trail
Rumours that the elusive Higgs boson has finally been spotted remain as tantalising as ever
News - 15 August 2007
Trick of light advances quantum computing
By harnessing the spin of laser light, pairs of atoms have been controllably entangled into a shared quantum state
News - 26 July 2007
Quantum states undergo natural selection
Darwin's ideas are being used to resolve how an objective reality emerges from the quantum world
News - 25 July 2007
The word: Zitterbewebung
We don't generally think of electrons as nervous, yet observe one closely enough and that is exactly how it might appear
The Word - 07 July 2007
Particle smasher aims for May 2008 switch-on
The Large Hadron Collider can still make its scheduled start-up date, despite the string of mishaps
News - 29 June 2007
The second quantum revolution
To track down a theory of everything, we might have to accept that the universe only exists when we're looking at it
Features - 20 June 2007
Atom trap is a step towards a quantum computer
A device that can hold hundreds of atoms in a 3D array, and image each one individually, has been developed by scientists in the US
Breaking News - 17 June 2007
String theory: it's not dead yet
Despite its triumphs, string theory has begun to lose the public battle for hearts and minds. It's time to fight back, says Sean Carroll
Comment and Analysis - 19 May 2007
Curiosity doesn't have to kill the quantum cat
Exclusive
A landmark experiment hopes to bring Schrödinger's cat back from the brink of death - it could rewrite our understanding of reality
Features - 09 May 2007
Impossible things for breakfast, at the Logic Café
Our rigid notions of true and false just don't work for a quantum world. It's time to dish up a new logic
Features - 14 April 2007
Superconductors inspire quantum test for dark energy
Below a certain frequency threshold, the quantum fluctuations of empty space may contribute to dark energy, as some materials become superconductors below a critical temperature
News - 07 April 2007
Electrons caught tunnelling out of atoms
For the first time scientists measure the quantum phenomenon on the atomic scale – each electron-escape happened mind-bogglingly fast
Breaking News - 04 April 2007
Outside of time: The quantum gravity computer
Want to know the answer to a problem before you even try to solve it? New Scientist has the computer for you
Features - 31 March 2007
The illusion of reality in a quantum world
If you want to be in two places at once, walk with New Scientist along the line between the quantum and classical worlds
Features - 17 March 2007
Quantum rebel wins over doubters
It rocked quantum theory when it was first proposed in 2004, but now the controversial experiment is published
News - 17 February 2007
New particle accelerator could rule out string theory
The Large Hadron Collider could provide a crucial test of string theory when it starts operating at the end of the year, new research suggests
Breaking News - 01 February 2007
Atomic 'transistor' may switch using quantum clouds
Bose-Einstein condensate – a super-cold gas cloud of atoms – could construct atomic transistors with more complex capabilities than electronics
Breaking News - 30 January 2007
The Large Hadron Collider: Bring it on!
The world's most powerful atom smasher turns on this year. New Scientist foresees some breakthroughs - and more than a few tricky problems
Features - 27 January 2007
Sending Einstein into a spin
If we want a theory of everything, we might have to break a few rules along the way, New Scientist discovers
Features - 18 January 2007
Gravity gets a quantum boost
Despite its 300-year history, Newton's gravitational constant, G, is the least well-measured of all the fundamental constants, but quantum mechanics may help
News - 13 January 2007
 
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