Abstract
The major obstacle to the preparation and manipulation of many-particle entangled states is decoherence due to the coupling of the system to the environment. A scheme to correct for the effects of decoherence and enforce coherent evolution in the system dynamics is described and illustrated for the particular case of the ion-trap quantum computer.
Keywords
Affiliated Institutions
Related Publications
Quantum Computations with Cold Trapped Ions
A quantum computer can be implemented with cold ions confined in a linear trap and interacting with laser beams. Quantum gates involving any pair, triplet, or subset of ions can...
Circuit quantum electrodynamics
Quantum mechanical effects at the macroscopic level were first explored in\nJosephson junction-based superconducting circuits in the 1980's. In the last\ntwenty years, the emerg...
Quantum Computers, Factoring, and Decoherence
It is known that quantum computers can dramatically speed up the task of finding factors of large numbers, a problem of practical significance for cryptographic applications. Fa...
Quantum cryptography using any two nonorthogonal states
Quantum techniques for key distribution---the classically impossible task of distributing secret information over an insecure channel whose transmissions are subject to inspecti...
Quantum Correlations and Secret Bits
It is shown that (i) all entangled states can be mapped by single-copy measurements into probability distributions containing secret correlations, and (ii) if a probability dist...
Publication Info
- Year
- 1996
- Type
- article
- Volume
- 273
- Issue
- 5279
- Pages
- 1207-1210
- Citations
- 87
- Access
- Closed
External Links
Social Impact
Social media, news, blog, policy document mentions
Citation Metrics
Cite This
Identifiers
- DOI
- 10.1126/science.273.5279.1207