The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.
Quantum Discord and the Power of One Qubit
Open accessAbstract
We use quantum discord to characterize the correlations present in the model called deterministic quantum computation with one quantum bit (DQC1), introduced by Knill and Laflamme [Phys. Rev. Lett. 81, 5672 (1998)10.1103/PhysRevLett.81.5672]. The model involves a collection of qubits in the completely mixed state coupled to a single control qubit that has nonzero purity. The initial state, operations, and measurements in the model all point to a natural bipartite split between the control qubit and the mixed ones. Although there is no entanglement between these two parts, we show that the quantum discord across this split is nonzero for typical instances of the DQC1 ciruit. Nonzero values of discord indicate the presence of nonclassical correlations. We propose quantum discord as figure of merit for characterizing the resources present in this computational model.
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Cites
Quantum Discord: A Measure of the Quantumness of Correlations
Ollivier, H., & Zurek, W. H. (2001) · Physical Review Letters · doi:10.1103/physrevlett.88.017901 · Cited by 3,616
Efficient Classical Simulation of Slightly Entangled Quantum Computations
Vidal, G. (2003) · Physical Review Letters · doi:10.1103/physrevlett.91.147902 · Cited by 2,368
Classical, quantum and total correlations
Henderson, L., & Vedral, V (2001) · Journal of Physics A: Mathematical and General · doi:10.1088/0305-4470/34/35/315 · Cited by 2,367
Experimental realization of Shor's quantum factoring algorithm using nuclear magnetic resonance
Vandersypen, L. M. K., Steffen, M., Breyta, G., Yannoni, C. S., Sherwood, M. H., & Chuang, I. L. (2001) · Nature · doi:10.1038/414883a · Cited by 1,738
Quantum nonlocality without entanglement
Bennett, C. H., DiVincenzo, D. P., Fuchs, C. A., Mor, T., Rains, E., Shor, P. W., Smolin, J. A., & Wootters, W. K. (1999) · Physical Review A · doi:10.1103/physreva.59.1070 · Cited by 1,130
Power of One Bit of Quantum Information
Knill, E., & Laflamme, R. (1998) · Physical Review Letters · doi:10.1103/physrevlett.81.5672 · Cited by 884
On the role of entanglement in quantum-computational speed-up
Jozsa, R., & Linden, N. (2003) · Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences · doi:10.1098/rspa.2002.1097 · Cited by 839
Separability of Very Noisy Mixed States and Implications for NMR Quantum Computing
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Self-citationComplete family of separability criteria
Doherty, A. C., Parrilo, P. A., & Spedalieri, F. M. (2004) · Physical Review A · doi:10.1103/physreva.69.022308 · Cited by 418
Entanglement and the power of one qubit
Datta, A., Flammia, S. T., & Caves, C. M. (2005) · Physical Review A · doi:10.1103/physreva.72.042316 · Cited by 371
Self-citation
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The classical-quantum boundary for correlations: Discord and related measures
Modi, K., Brodutch, A., Cable, H., Paterek, T., & Vedral, V. (2012) · Reviews of Modern Physics · doi:10.1103/revmodphys.84.1655 · Cited by 1,600
Experimental Quantum Computing without Entanglement
Lanyon, B. P., Barbieri, M., Almeida, M. P., & White, A. G. (2008) · Physical Review Letters · doi:10.1103/physrevlett.101.200501 · Cited by 874
Photonic Boson Sampling in a Tunable Circuit
Broome, M. A., Fedrizzi, A., Rahimi-Keshari, S., Dove, J., Aaronson, S., Ralph, T. C., & White, A. G. (2013) · Science · doi:10.1126/science.1231440 · Cited by 634
Contextuality supplies the ‘magic’ for quantum computation
Howard, M., Wallman, J., Veitch, V., & Emerson, J. (2014) · Nature · doi:10.1038/nature13460 · Cited by 616
Giorda, P., & Paris, M. G. A. (2010) · Physical Review Letters · doi:10.1103/physrevlett.105.020503 · Cited by 490
Metadata
- Authors
- Datta, A., Shaji, A., & Caves, C. M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2008-02-05
- Volume
- 100
- Issue
- 5
- Pages
- 050502-050502
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2000467687
- Cited by
- 1,258
- References
- 19
- FWCI
- 111.30
- Type
- journal article
- Language
- en
- Open access
- green
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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