Arbitrarily accurate composite pulse sequences
- 19 November 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 70 (5) , 052318
- https://doi.org/10.1103/physreva.70.052318
Abstract
Systematic errors in quantum operations can be the dominating source of imperfection in achieving control over quantum systems. This problem, which has been well studied in nuclear magnetic resonance, can be addressed by replacing single operations with composite sequences of pulsed operations, which cause errors to cancel by symmetry. Remarkably, this can be achieved without knowledge of the amount of error . Independent of the initial state of the system, current techniques allow the error to be reduced to . Here, we extend the composite pulse technique to cancel errors to , for arbitrary .
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This publication has 17 references indexed in Scilit:
- Deterministic quantum teleportation with atomsNature, 2004
- Theory of decoherence-free fault-tolerant universal quantum computationPhysical Review A, 2001
- Quantum information theoryIEEE Transactions on Information Theory, 1998
- Quantum computingReports on Progress in Physics, 1998
- Theory of fault-tolerant quantum computationPhysical Review A, 1998
- Theory of quantum error-correcting codesPhysical Review A, 1997
- Optimal frequency measurements with maximally correlated statesPhysical Review A, 1996
- Error Correcting Codes in Quantum TheoryPhysical Review Letters, 1996
- Broadband Population InversionPhysical Review Letters, 1983
- NMR population inversion using a composite pulseJournal of Magnetic Resonance (1969), 1979