The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Measurement of the Entanglement of Two Superconducting Qubits via State Tomography
Open accessAbstract
Demonstration of quantum entanglement, a key resource in quantum computation arising from a nonclassical correlation of states, requires complete measurement of all states in varying bases. By using simultaneous measurement and state tomography, we demonstrated entanglement between two solid-state qubits. Single qubit operations and capacitive coupling between two super-conducting phase qubits were used to generate a Bell-type state. Full two-qubit tomography yielded a density matrix showing an entangled state with fidelity up to 87%. Our results demonstrate a high degree of unitary control of the system, indicating that larger implementations are within reach.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Quantum Computation and Quantum Information
Nielsen, M. A., Chuang, I., & Grover, L. K. (2002) · American Journal of Physics · doi:10.1119/1.1463744 · Cited by 21,895
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
Self-citationDecoherence in Josephson Qubits from Dielectric Loss
Martinis, J. M., Cooper, K. B., McDermott, R., Steffen, M., Ansmann, M., Osborn, K. D., Cicak, K., Oh, S., Pappas, D. P., Simmonds, R. W., et al. (2005) · Physical Review Letters · doi:10.1103/physrevlett.95.210503 · Cited by 838
Self-citationImplementation of a three-quantum-bit search algorithm
Vandersypen, L. M. K., Steffen, M., Sherwood, M. H., Yannoni, C. S., Breyta, G., & Chuang, I. L. (2000) · Applied Physics Letters · doi:10.1063/1.125846 · Cited by 131
Self-citation
Cited by
Ladd, T. D., Jelezko, F., Laflamme, R., Nakamura, Y., Monroe, C., & O’Brien, J. L. (2010) · Nature · doi:10.1038/nature08812 · Cited by 3,592
Quantum Measurement and Control
Wiseman, H. M., & Milburn, G. J. (2009) · Cambridge University Press eBooks · doi:10.1017/cbo9780511813948 · Cited by 2,119
Atomic physics and quantum optics using superconducting circuits
You, J. Q., & Nori, F. (2011) · Nature · doi:10.1038/nature10122 · Cited by 1,311
Quantum computing with trapped ions
HAFFNER, H., ROOS, C., & BLATT, R. (2008) · Physics Reports · doi:10.1016/j.physrep.2008.09.003 · Cited by 1,154
Randomized benchmarking of quantum gates
Knill, E., Leibfried, D., Reichle, R., Britton, J., Blakestad, R. B., Jost, J. D., Langer, C., Ozeri, R., Seidelin, S., & Wineland, D. J. (2008) · Physical Review A · doi:10.1103/physreva.77.012307 · Cited by 1,019
Metadata
- Authors
- Steffen, M., Ansmann, M., Bialczak, R. C., Katz, N., Lucero, E., McDermott, R., Neeley, M., Weig, E. M., Cleland, A. N., & Martinis, J. M.
- Venue
- Science
- Published
- 2006-09-08
- Volume
- 313
- Issue
- 5792
- Pages
- 1423-1425
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1979089304
- Cited by
- 552
- References
- 4
- FWCI
- 54.73
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Measurement of the Entanglement of Two Superconducting Qubits via State Tomography. https://app.cochat.ai/papers/10.1126/science.1130886
- The paper
- Steffen, M., Ansmann, M., Bialczak, R. C., Katz, N., Lucero, E., McDermott, R., Neeley, M., Weig, E. M., Cleland, A. N., & Martinis, J. M. (2006). Measurement of the Entanglement of Two Superconducting Qubits via State Tomography. Science. https://doi.org/10.1126/science.1130886
Data sources
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).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
