The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.
Ancilla-Assisted Quantum Process Tomography
Open accessAbstract
Complete and precise characterization of a quantum dynamical process can be achieved via the method of quantum process tomography. Using a source of correlated photons, we have implemented several methods, each investigating a wide range of processes, e.g., unitary, decohering, and polarizing. One of these methods, ancilla-assisted process tomography (AAPT), makes use of an additional "ancilla system," and we have theoretically determined the conditions when AAPT is possible. Surprisingly, entanglement is not required. We present data obtained using both separable and entangled input states. The use of entanglement yields superior results, however.
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
Self-citationQuantum computation and quantum information
Law, J. (2001) · ACM SIGSOFT Software Engineering Notes · doi:10.1145/505482.505499 · Cited by 18,842
James, D. F. V., Kwiat, P. G., Munro, W. J., & White, A. G. (2001) · Physical Review A · doi:10.1103/physreva.64.052312 · Cited by 2,176
Self-citationUltrabright source of polarization-entangled photons
Kwiat, P. G., Waks, E., White, A. G., Appelbaum, I., & Eberhard, P. H. (1999) · Physical Review A · doi:10.1103/physreva.60.r773 · Cited by 1,142
Self-citationComplete Characterization of a Quantum Process: The Two-Bit Quantum Gate
Poyatos, J. F., Cirac, J. I., & Zoller, P. (1997) · Physical Review Letters · doi:10.1103/physrevlett.78.390 · Cited by 694
Experimental realization of a localized one-photon state
Hong, C. K., & Mandel, L. (1986) · Physical Review Letters · doi:10.1103/physrevlett.56.58 · Cited by 632
Complete quantum teleportation using nuclear magnetic resonance
Nielsen, M. A., Knill, E., & Laflamme, R. (1998) · Nature · doi:10.1038/23891 · Cited by 548
Self-citationNonmaximally Entangled States: Production, Characterization, and Utilization
White, A. G., James, D. F. V., Eberhard, P. H., & Kwiat, P. G. (1999) · Physical Review Letters · doi:10.1103/physrevlett.83.3103 · Cited by 511
Self-citationQudit quantum-state tomography
Thew, R. T., Nemoto, K., White, A. G., & Munro, W. J. (2002) · Physical Review A · doi:10.1103/physreva.66.012303 · Cited by 346
Self-citationD'Ariano, G. M., & Lo Presti, P. (2001) · Physical Review Letters · doi:10.1103/physrevlett.86.4195 · Cited by 305
Cited by
NMR techniques for quantum control and computation
Vandersypen, L. M. K., & Chuang, I. L. (2005) · Reviews of Modern Physics · doi:10.1103/revmodphys.76.1037 · Cited by 1,217
Continuous-variable optical quantum-state tomography
Lvovsky, A. I., & Raymer, M. G. (2009) · Reviews of Modern Physics · doi:10.1103/revmodphys.81.299 · Cited by 1,123
Exact and approximate unitary 2-designs and their application to fidelity estimation
Dankert, C., Cleve, R., Emerson, J., & Livine, E. (2009) · Physical Review A · doi:10.1103/physreva.80.012304 · Cited by 685
Quantum Process Tomography of a Controlled-NOT Gate
O'Brien, J. L., Pryde, G. J., Gilchrist, A., James, D. F. V., Langford, N. K., Ralph, T. C., & White, A. G. (2004) · Physical Review Letters · doi:10.1103/physrevlett.93.080502 · Cited by 499
Self-citationCharacterizing quantum gates via randomized benchmarking
Magesan, E., Gambetta, J. M., & Emerson, J. (2012) · Physical Review A · doi:10.1103/physreva.85.042311 · Cited by 464
Metadata
- Authors
- Altepeter, J. B., Branning, D., Jeffrey, E., Wei, T. C., Kwiat, P. G., Thew, R. T., O’Brien, J. L., Nielsen, M. A., & White, A. G.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2003-05-15
- Volume
- 90
- Issue
- 19
- Pages
- 193601-193601
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1984964553
- Cited by
- 345
- References
- 15
- FWCI
- 14.49
- 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: Ancilla-Assisted Quantum Process Tomography. https://app.cochat.ai/papers/10.1103/physrevlett.90.193601
- The paper
- Altepeter, J. B., Branning, D., Jeffrey, E., Wei, T. C., Kwiat, P. G., Thew, R. T., O’Brien, J. L., Nielsen, M. A., & White, A. G. (2003). Ancilla-Assisted Quantum Process Tomography. Physical Review Letters. https://doi.org/10.1103/physrevlett.90.193601
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.
