There is a fair (read: large) amount of engineering work still to be done before this comes to a RealWorldTM near you, but scientists at the Georgia Institute of Technology have taken three big strides towards working quantum networks with discoveries that will enable quantum bits to be transmitted and detected over normal telecoms networks.The problem is that the ideal wavelength for quantum storage is much shorter than that for efficient information transmission.
Qubits and Pieces
News from the frontline of the weird and wonderful world of quantum computing. From the theoretical musings of solid state physicists to breakthroughs you might actually see in a data centre in your lifetime, we'll be keeping an eye on stuff that matters in materials science, including graphene, condensed matter, diamonds and so on. And last, but by no mean least, we'll be tracking the spin on spintronics. Just don't mention room temperature.
Lucy Sherriff is a journalist, science geek and general liker of all things techie and clever. In a previous life she put her physics degree to moderately good use by writing about science for that other tech website, The Register. After a bit of a break, it seemed like a good time to start blogging about weird quantum stuff for ZDNet. And so here we are.
"Footage" of individual iron atoms captured by IBMs new pulsed-scanning tunnelling microscope, could herald a new era of atomic-scale microchip design, the company says.The scanning tunnelling microscope (STM), invented by IBM in the 1980s, can resolve images at the atomic scale.
We are within ten years of a quantum computer than can outperform traditional machines according to a team of researchers at the University of Bristol.A team of researchers has developed a new photonic chip capable of performing a "quantum walk" with two photons.
Wonder material graphene gets more wonderfully mysterious the closer scientists look. And the latest attempt to understand how the atom-thick sheet of carbon atoms carries current the way it does has left physicists with more questions than they started with.
We know graphene is the best thing since sliced gallium arsenide to hit the electronics industry, thanks to the speed with which it dispatches electrons across its famous chickenwire network of carbon atoms. But so far, making transistors from the stuff live up to the promise it holds has been problematic.
Researchers at Imperial College London think they have found a way to test one of the most important – and controversial ideas in theoretical physics: string theory.The team, headed by Professor Michael Duff, has drawn a parallel between the mathematics of string theory and the mathematics of quantum entanglement.
New research from the US has hinted that we will be able to control the electronic properties of graphene with even more finesse than previously imagined. According to researchers at UC, it is possoble to stretch the honeycomb lattice of graphene in such a way that tiny bubbles form in the layer of carbon atomsIn the nano bubbles, electrons form up neatly into quantised energy levels, as if they were circling in magnetic field of up to 300 Tesla.
What if you could have graphene, but instead of it being carbon based, it was silicon based, and therefore already compatible with today's silicon electronics? Welcome silicene, a new wonder material composed of an atom-thick sheet of silicon.
Researchers at the Oak Ridge National Laboratory in the states have found a way to sharpen up an experimental cleaning process that is crucial if graphene is to take its place at the heart of future electronics design.Back in 2009 it was reported that 'Joule heating process' could actually introduce a fatal defect into the chickenwire structure of graphene: as well as cleaning the edges, it could connect the layers to one another, rendering the material useless.
A thirty year-old encryption algorithm has been shown to be able to withstand any attacks that can be mounted against it, even by quantum computers.Quantum computing has been described as sounding the death knell for most cryptography.