Single electronics on Helium
- 👤 Speaker: Prof. M.J. Lea, Royal Holloway College, London
- 📅 Date & Time: Monday 28 November 2005, 14:15 - 15:15
- 📍 Venue: Mott Seminar Room, Cavendish Laboratory, Department of Physics
Abstract
Surface-state electrons on liquid helium, localised in quantum dots, have been proposed as condensed matter qubits. Several groups have now demonstrated experimentally that small numbers of electrons, including a single isolated electron, can be held in electrostatic traps above the surface of superfluid helium. A potential well is created using microfabricated electrodes in a 3 – 5 mm diameter pool of helium. Electrons are injected into the trap from an electron reservoir on a helium microchannel. They are individually detected using a superconducting single-electron transistor (SET) as an electrometer. Recent results and new devices for an electron array will be presented.
Series This talk is part of the Semiconductor Physics series.
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Prof. M.J. Lea, Royal Holloway College, London
Monday 28 November 2005, 14:15-15:15