http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Quantum dots, along with quantum wires, have been attracting notice over the past decade as possible building blocks of quantum information processing. Indium arsenide quantum dots (InAs) can be used for memory operations in devices made from gallium arsenide and aluminum gallium arsenide (known as GaAs/AlGaAs devices). The problem is that at room temperature - the experiments are usually done at lower temperatures, the memory operation of these devices suffers, unless there are multiple quantum dot layers. http://www.physorg.com/news138882516.html Physics Mon, 25 Aug 2008 11:28:36 EST news138882516