How to build a 300 bit, 1 giga-operation quantum computer

Journal article

Experimental methods for laser control of trapped ions have reached su cient maturity that it is possible to set out in detail a design for a large quantum computer based on such methods, without any major omissions or uncertainties. The main features of such a design are given, with a view to identifying areas for study. The machine is based on 13000 ions moved via 20μm vacuum channels around a chip containing 160000 electrodes and associated classical control circuits; 1000 laser beam pairs are used to manipulate the hyperfine states of the ions and drive fluorescence for readout. The computer could run a quantum algorithm requiring 10 9 logical operations on 300 logical qubits, with a physical gate rate of 1 MHz and a logical gate rate of 8 kHz, using methods for quantum gates that have already been experimentally implemented. Routes for faster operation are discussed. © Rinton Press.

Authors: Steane, A

• Publication status: Published
• Journal: QUANTUM INFORMATION and COMPUTATION
• Volume: 7
• Issue: 3
• Pages: 171-183
• Publication date: 2007-03-01
• ISSN: 1533-7146
• Language: English
• Keywords: quantum computer architecture fault-tolerant