Quantum State Reduction for Universal Measurement Based Computation
Name
Chen-2010-Quantum State Reduct.pdf
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161.24 KB
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Checksum (MD5)
095067c9fac5f9918d863c9882c6dc32
Author(s)
Chen, Xie
Duan, Runyao
Ji, Zhengfeng
Zeng, Bei
Date Issued
July 2010
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Chen, Xie et al. "Quantum State Reduction for Universal Measurement Based Computation." Physical Review Letters 105.2 (2010): 020502. © 2010 The American Physical Society
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.105.020502
