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Characterization of entangling properties of quantum measurement via two-mode quantum detector tomography using coherent state probes

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Shota Yokoyama, Nicola Dalla Pozza, Takahiro Serikawa, Katanya B. Kuntz, Trevor A. Wheatley, Daoyi Dong, Elanor H. Huntington, Hidehiro Yonezawa

Quantum Physics · Submitted 18 May 2017

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Our proposed measure verifies that the detector makes an entangled measurement under certain conditions, and reveals the nature of the entangling properties of the detector.

how it is stated · asserted 1.00 read the record →

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arXiv ID1705.06441 (version 2)
Pith IDMQRIOTBH, Pith's permanent record of this paper and its review
CitationDaoyi Dong, Elanor H. Huntington, Hidehiro Yonezawa, Katanya B. Kuntz, Nicola Dalla Pozza, Shota Yokoyama, Takahiro Serikawa, Trevor A. Wheatley. "Characterization of entangling properties of quantum measurement via two-mode quantum detector tomography using coherent state probes." arXiv:1705.06441 (2017). https://pith.science/paper/MQRIOTBH
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The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 6,133 input tokens.

What the abstract itself states, as probabilities: claims first 0.07 · states limitation 0.13 · human participants 0.02 · controlled comparison 0.04 · randomized assignment 0.01 · states quantitative result 0.05 · compares with prior results 0.06 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

Entangled measurement is a crucial tool in quantum technology. We propose a new entanglement measure of multi-mode detection, which estimates the amount of entanglement that can be created in a measurement. To illustrate the proposed measure, we perform quantum tomography of a two-mode detector that is comprised of two superconducting nanowire single photon detectors. Our method utilizes coherent states as probe states, which can be easily prepared with accuracy. Our work shows that a separable state such as a coherent state is enough to characterize a potentially entangled detector. We investigate the entangling capability of the detector in various settings. Our proposed measure verifies that the detector makes an entangled measurement under certain conditions, and reveals the nature of the entangling properties of the detector. Since the precise characterization of a detector is essential for applications in quantum information technology, the experimental reconstruction of detector properties along with the proposed measure will be key features in future quantum information processing.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 Entangled measurement is a crucial tool in quantum technology. background 1.00 0.04 0.03 asserted 1.00
s1 We propose a new entanglement measure of multi-mode detection, which estimates the amount of entanglement that can be created in a measurement. contribution 1.00 0.90 0.16 asserted 0.98
s2 To illustrate the proposed measure, we perform quantum tomography of a two-mode detector that is comprised of two superconducting nanowire single photon detectors. method 0.79 0.96 0.05 asserted 0.99
s3 Our method utilizes coherent states as probe states, which can be easily prepared with accuracy. method 1.00 0.55 0.04 asserted 1.00
s4 Our work shows that a separable state such as a coherent state is enough to characterize a potentially entangled detector. result 0.73 0.83 0.27 asserted 0.99
s5 We investigate the entangling capability of the detector in various settings. contribution 0.83 0.92 0.05 asserted 0.79
s6 Our proposed measure verifies that the detector makes an entangled measurement under certain conditions, and reveals the nature of the entangling properties of the detector. result 0.85 0.94 0.70 asserted 1.00
s7 Since the precise characterization of a detector is essential for applications in quantum information technology, the experimental reconstruction of detector properties along with the proposed measure will be key features in future quantum information processing. future work 0.86 0.12 0.13 asserted 0.62

What kind of paper the classifier reports this is: method or tool 0.97 · evidence from observation or experiment 1.00.

What was examined, and what was not

sources read
  • arXiv listing abstract v2
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
levels run
  • P abstract
not run
  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

Entangled measurement is a crucial tool in quantum technology. We propose a new entanglement measure of multi-mode detection, which estimates the amount of entanglement that can be created in a measurement. To illustrate the proposed measure, we perform quantum tomography of a two-mode detector that is comprised of two superconducting nanowire single photon detectors. Our method utilizes coherent states as probe states, which can be easily prepared with accuracy. Our work shows that a separable state such as a coherent state is enough to characterize a potentially entangled detector. We investigate the entangling capability of the detector in various settings. Our proposed measure verifies that the detector makes an entangled measurement under certain conditions, and reveals the nature of the entangling properties of the detector. Since the precise characterization of a detector is essential for applications in quantum information technology, the experimental reconstruction of detector properties along with the proposed measure will be key features in future quantum information processing.

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Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

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