Adiabatic quantum computation in open systems
We analyze the performance of adiabatic quantum computation (AQC) subject to decoherence. To this end, we introduce an inherently open-systems approach, based on a recent generalization of the adiabatic approximation. In contrast to closed systems, we show that a system may initially be in an adiaba...
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| Published in | Physical review letters Vol. 95; no. 25; p. 250503 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
16.12.2005
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| Online Access | Get more information |
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| Summary: | We analyze the performance of adiabatic quantum computation (AQC) subject to decoherence. To this end, we introduce an inherently open-systems approach, based on a recent generalization of the adiabatic approximation. In contrast to closed systems, we show that a system may initially be in an adiabatic regime, but then undergo a transition to a regime where adiabaticity breaks down. As a consequence, the success of AQC depends sensitively on the competition between various pertinent rates, giving rise to optimality criteria. |
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| ISSN: | 0031-9007 |
| DOI: | 10.1103/PhysRevLett.95.250503 |