Quantum principal component analysis
Abstract
Characterizing an unknown quantum state typically relies on analysing the outcome of a large set of measurements. Certain quantum-processing tasks are now shown to be realizable using only approximate knowledge of the state, which can be gathered with exponentially fewer resources.
- Publication:
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Nature Physics
- Pub Date:
- September 2014
- DOI:
- arXiv:
- arXiv:1307.0401
- Bibcode:
- 2014NatPh..10..631L
- Keywords:
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- Quantum Physics
- E-Print:
- 9 pages, Plain TeX