Scientists have found a way of slowing light down using silicon crystals. The breakthrough has potential to speed up computation, and lead to fundamentally more secure communications, the researchers claim.
Qubits and Pieces
News from the frontline of the weird and wonderful world of quantum computing.
<p>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. </p>
Researchers at the University of Pittsburgh, HP Labs and UW Madison, have built a single electron transistor that will operate with the addition of just one or two more electrons.The new device, hailed as a potential building block for ever smaller and denser memory devices, and even quantum computers, was created with an atomic scale "Etch-a-Sketch" developed by Prof.
Professor Andre Geim, one of the researchers awarded the Nobel prize for his work with Graphene, announced yesterday that he and his team at the University of Manchester have successfully magnetised graphene using a flow of electrons.The work has been described as a potentially huge breakthrough in the field of spintronics, as it "offers numerous opportunities for redesigning current spintronics devices and making new ones such as spin-based transistors" per the university’s announcement.
With the right engineering, graphene could be made to behave like a ferromagnet, according to new research which has uncovered a so-called tunable Kondo Effect in holey sheet of the 2-dimensional carbon lattice.Physics Professor Michael S.
IBM has demonstrated a new super whizzy graphene transistor, clocking in at 155GHz, up from the 100GHz it benched last year.The breakthrough was made possible because the transistor was set on a substrate of "diamond-like carbon", itself layered on a commercial silicon wafer.
Graphene, twice threatened by silicon's atom-thick offspring silicene, the pretender to its carbon throne, has hit back with yet another amazing characteristic: transistors made from the atom-tick carbon mesh will cool themselves.Heat is the bane of the electronics industry’s life.
Physicists at the University of Innsbruck report a world record in quantum computing: controlled entanglement of 14 atoms to produce 14 qubits, the largest quantum register ever produced.We hesitate in bringing you this news, as the press release is dated April 1st.
Graphene's chief rival silicene, has been given another boost as scientists in Japan have found a new way to manufacture atom-thin sheets of silicon.The idea that silicon could exist in two dimensional sheets was first mooted back in 2007, when researchers from Wright University in Ohio dubbed the then hypothetical material “silicene”.
Synthetic diamonds are laced with impurities thanks to the manufacturing process. One of these, nitrogen, turns them an attractive shade of nicotine-stain-yellow.
Researchers at the University of Utah have reported room temperature spintronics in silicon. They describe using a spintronic transistor to align the magnetic spins of electrons in silicon chips.
Researchers at Northwestern University have built a switch that can route qubits, paving the way for quantum networking, and maybe one day (per Wired) a quantum internet.The all-optical switch is capable of routing entangled photons along standard, telecom grade fibre-optic cables, without the entanglement breaking down.
One of the many interesting things about the cool-by-association-but-also-potentially-very-useful graphene oxide was the fact that it appeared to be soluble. You will be able to tell from the phrasing that it turns out not to be true.
A new technique, developed by a team at Rice University, will allow lithographers to strip back individual, atom-thick, layers of graphene, one at a time, shaping the material into the electronic components it promises to revolutionise.Dr.
Quantum computing may be only just out of the realms of science fiction, but already there is an issue for a standards body to address. Researchers in Austria have come up with a totally new architecture for the exchange of quantum information: quantum antennae.
Brace yourself for a new wave of hard disk sensors and more power efficient hard drives, thanks to the world’s smallest ever magnetic field sensor developed by researchers at the Karlsruhe Institute of Technology and the Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS).