Low Temperature Physics: 29, 489 (2003); https://doi.org/10.1063/1.1542534 (3 pages)
Физика Низких Температур: Том 29, Выпуск 6 (Июнь 2003), c. 659-662    ( к оглавлению , назад )

Quantum computing with bits made of electrons on a helium surface

A.J. Dahm

Department of Physics, Case Western Reserve University Cleveland, OH 44106-7079, USA
E-mail: ajd3@cwru.edu

Received December 19, 2002

Аннотация

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.

PACS:
03.67.Lx - Quantum computation
73.20.-r - Electron states at surfaces and interfaces