Physicists in the US are the first to use a combination of light and sound to control the state of a diamond-based quantum bit (qubit) of information. The team used a laser pulse and a sound wave to modify the energy state of an electron in a nitrogen vacancy (NV) centre in diamond. According to the researchers, the technique could be further developed for controlling qubits in a chip-based network of NV centres……..
http://nanotechweb.org/cws/article/tech/64705
