‘Microwave ion-trap chip for quantum computation’, by Diana Prado Lopes Aude Craik and Norbert Linke of the University of Oxford, shows the chip’s gold wire-bonds connected to electrodes whose electric fields trap single ions 100µmicrons above their surface for quantum computing.
“These ions are used as quantum bits which store and process information in a quantum computer. Slotted electrodes on the chip deliver microwave radiation to the ions, allowing us to manipulate the stored quantum information by exciting transitions between the ‘0’ and ‘1’ energy states,” said Craik, who added that the Oxford team recently achieved the ‘world’s highest-performing qubits and quantum logic operations’.
The competition’s five categories were: Eureka, Equipment, People, Innovation, and Weird and Wonderful.
The ion trap was also first in the Eureka category.
1st in the Innovation category was a piece of glass is being processed with a high power ultra-fast laser, which causes a luminous plasma to form. Light from the plasma emerges from the glass block to cast shadows around the room – taken by Jonathon Parkins
1st, 2nd and 3rd in all the categories can be seen on the EPSRC website (scroll down).