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SUMMARY:Single electronics on Helium - Prof. M.J. Lea\, Royal Holloway Col
 lege\, London
DTSTART:20051128T141500Z
DTEND:20051128T151500Z
UID:TALK4583@talks.cam.ac.uk
CONTACT:K DAS GUPTA
DESCRIPTION:Surface-state electrons on liquid helium\, localised in quantu
 m dots\,\nhave been proposed as condensed matter qubits. Several groups ha
 ve\nnow demonstrated experimentally that small numbers of electrons\,\ninc
 luding a single isolated electron\, can be held in electrostatic\ntraps ab
 ove the surface of superfluid helium. A potential well is\ncreated using m
 icrofabricated electrodes in a 3 - 5 mm diameter pool\nof helium. Electron
 s are injected into the trap from an electron\nreservoir on a helium micro
 channel. They are individually detected\nusing a superconducting single-el
 ectron transistor (SET) as an\nelectrometer. Recent results and new device
 s for an electron array\nwill be presented.\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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