Abstract
Arrays of weakly coupled quantum systems might compute if subjected to a sequence of electromagnetic pulses of well-defined frequency and length. Such pulsed arrays are true quantum computers: Bits can be placed in superpositions of 0 and 1, logical operations take place coherently, and dissipation is required only for error correction. Operated with frequent error correction, such a system functions as a parallel digital computer. Operated in a quantum-mechanically coherent manner, such a device functions as a general-purpose quantum-mechanical micromanipulator, capable of both creating any desired quantum state of the array and transforming that state in any desired way.
Keywords
QuantumQuantum computerQuantum error correctionComputer scienceState (computer science)PhysicsError detection and correctionSequence (biology)DissipationAlgorithmQuantum mechanicsChemistry
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Publication Info
- Year
- 1993
- Type
- article
- Volume
- 261
- Issue
- 5128
- Pages
- 1569-1571
- Citations
- 623
- Access
- Closed
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Cite This
Seth Lloyd
(1993).
A Potentially Realizable Quantum Computer.
Science
, 261
(5128)
, 1569-1571.
https://doi.org/10.1126/science.261.5128.1569
Identifiers
- DOI
- 10.1126/science.261.5128.1569