Low Temperature Physics: 29, 489 (2003); https://doi.org/10.1063/1.1542534 (3 pages)
Quantum computing with bits made of electrons on a helium surface
Department of Physics, Case Western Reserve University Cleveland, OH 44106-7079, USA
Received December 19, 2002
We describe a quantum computer based on electrons supported by a helium film and localized laterally by small electrodes. Each quantum bit (qubit) is made of combinations of the ground and
first excited state of an electron trapped in the image potential well at the surface. Mechanisms for preparing the initial state of the qubit, operations with the qubits, and a proposed readout are described. This system is, in principle, capable of 105 operations in a decoherence time.