Researchers at London’s Imperial College have demonstrated a new theory of quantum data analysis that could allow a future quantum computer to tolerate data error rates of up to 25 per cent.The researchers, working with colleagues at the University of Queensland, have shown that it is possible to correct for a particular kind of error, in which qubits are lost from the computer altogether.
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.
From the Nobel prize-winning team who brought you the honeycomb structure sheet of carbon atoms that is graphene, comes the sequel: Fluoro-graphene: 2D Teflon.Kostya Novoselov and Andre Geim led an international team of scientists modify a sheet of graphene so that it became an insulator.
A newly observed material – at once both a superconductor and a metal – could be destined for a stunning career in quantum computing, according to scientists at Princeton.M.
A single molecule magnet could boost the emerging field of spintronics now that researchers in Italy have shown it is possible to deposit a layer of SMMs on to gold, and retain the molecule's magnetic character.According to the Royal Society of Chemistry, Roberta Sessoli and colleagues at the University of Florence managed to exert some control over the orientation of the molecule once bound to the surface of the gold, something that has historically proved difficult to do.
Researchers at Rice University and the University of California, Riverside have taken advantage of another quirk in graphene's arsenal, ambipolarity, to build and test a triple mode transistor, that could lead to yet smaller and cooler (not in the iPod sense) wireless devices.Conventionally, ability of a transistor to conduct either electrons (negative charge) or holes (positive charge) is fixed during fabrication.
Scientists at the University of Santa Barbara have, in the words of graduate student Bob Buckley, managed to "manipulate the quantum state of a single electron in a semiconductor without destroying the information", by very briefly forming a mixture of light and matter.
Scientists in the US have found a way of growing graphene on etched silicon carbide, producing the highest ever density of graphene transistors: an array of 10,000 top-gated transistors on a .24cm square chip.
We filed a post a few weeks back about research that showed it was possible to spilt a photon into three.Now, researchers at the University of Santa Barbara (and simultaneously, a group at Yale led by Prof.
Two physicists from the University of Manchester are to share the Nobel Prize for their work on wonder-material graphene.Dr Andrei Geim and Dr Konstantin Novoselov scooped the prize - thought to be worth close to a £1m - for "groundbreaking experiments regarding the two-dimensional material graphene".
New research published in Nature suggests silicon's days as the pre-eminent material in electronics design are not yet over.As the size of electronics continues on its ever decreasing path, quantum mechanical effects become more and more important.