A Potentially Realizable Quantum Computer

• DOI: 10.1126/science.261.5128.1569
• Publication Date: 2006-10-05T23:05:09Z
• Authors: Seth Lloyd
• Keywords: Sequence (biology)

Arrays of weakly coupled quantum systems might compute if subjected to a sequence electromagnetic pulses well-defined frequency and length. Such pulsed arrays are true computers: Bits can be placed in superpositionsof 0 1, logical operations take place coherently, dissipation is required only for error correction. Operated with frequent correction, such system functions as parallel digital computer. quantum-mechanically coherent manner, device generalpurpose quantum-mechanical micromanipulator, capable both creating any desired state the array transforming that way.