Cited by 149Quantum Information and CryptographyQuantum optics and atomic interactionsSemiconductor Quantum Structures and Devices

Qutrit State Engineering with Biphotons

Open access
Bogdanov, Yu. I., Chekhova, M. V., Kulik, S. P., Maslennikov, G. A., Zhukov., A. A., Oh, C. H., Tey, M. K.·2004·Physical Review Letters

Abstract

The novel experimental realization of three-level optical quantum systems is presented. We use the polarization state of biphotons to generate a specific sequence of states that are used in the extended version of four-state QKD protocol quantum key distribution protocol. We experimentally verify the orthogonality of the basic states and demonstrate the ability to easily switch between them. The tomography procedure is employed to reconstruct the density matrices of generated states.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1103/physrevlett.93.230503

Cites

Statistics

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.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Methods of using series of coincidence measurements for reconstructing parameters of quantum states are alternative to standard and rather widely used methods of quantum tomography for biphoton ququarts [1, 9, 10].

    “Note also that the methods of using series of coincidence measurements for reconstructing parameters of quantum states are alternative to standard and rather widely used methods of quantum tomography for biphoton ququarts [1, 9, 10].”

    From Biphoton ququarts as either pure or mixed states, features and reconstruction from coincidence measurements (2013) · cites this paper as [10]

    The measurement description (p. 2) says the authors reconstruct biphoton-state density matrices through nine projective measurements, and the procedure (p. 3) records coincidence counts. But the paper studies three-level qutrits, not ququarts, and explicitly calls its reconstruction method a tomography protocol rather than an alternative to tomography. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

No references could be resolved yet.

Research works printed but not linked: 5

  1. [7]R.T.Thew, et al , Quantum Information and Computation, Vol.4, No.2, 93 (2004).
  2. [11]A.V.Burlakov and M.V.Chekhova, Sov. JETP. 75 , 8, 432 (2002).
  3. [12]M.V.Chekhova, et al , Sov. JETP Letters. 76 (10), 696 (2002).
  4. [14]G.A.Maslennikov, et al , Journal of Optics B. 5 , 530 (2003).
  5. [17]D.N.Klyshko, JETP 84, 1065 (1997).

Cited by

Sorted by citations

Authors
Bogdanov, Y. I., Chekhova, M. V., Kulik, S. P., Maslennikov, G. A., Zhukov., A. A., Oh, C. H., & Tey, M. K.
Affiliations
  • Lomonosov Moscow State University (RU)
  • National University of Singapore (SG)
Venue
Physical Review Letters
Published
2004-12-01
Volume
93
Issue
23
Pages
230503-230503
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2021895789
Cited by
149
References
0
Citations by year
2026: 4 · 2025: 7 · 2024: 5 · 2023: 6 · 2022: 7 · 2021: 4 · 2020: 4 · 2018: 1 · 2017: 5 · 2016: 8 · 2015: 5 · 2014: 8 · 2013: 7 · 2012: 8
FWCI
11.50
Type
journal article
Language
en
Open access
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • National University of Singapore (submittedVersion)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
Keywords
qutrits, biphotons, polarization state, quantum key distribution, state switching, quantum state engineering

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