Journal
PHYSICAL REVIEW LETTERS
Volume 105, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.020502
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Funding
- QCIS
- University of Technology, Sydney
- NSF of China [60736011, 60702080, 60721061]
- NSERC
- QuantumWorks
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Research Innovation
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Measurement based quantum computation, which requires only single particle measurements on a universal resource state to achieve the full power of quantum computing, has been recognized as one of the most promising models for the physical realization of quantum computers. Despite considerable progress in the past decade, it remains a great challenge to search for new universal resource states with naturally occurring Hamiltonians and to better understand the entanglement structure of these kinds of states. Here we show that most of the resource states currently known can be reduced to the cluster state, the first known universal resource state, via adaptive local measurements at a constant cost. This new quantum state reduction scheme provides simpler proofs of universality of resource states and opens up plenty of space to the search of new resource states.
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