Skip to content
DraconiticResearch
Search Sources API
190,839 studies31 sourcesUpdated 10 min ago
PreprintCC BY 4.0arXiv

Detector Placement Relaxes Efficiency Requirements for Detecting a Weak Coherent Link

  • M. H. Yu
  • S. Y. Li
  • X. Z. Zhang
Open at sourcePDFDOICite

Abstract

A weak coherent link can produce unusually early arrivals without changing stationary count rates. Missed jumps along routes available without the link can produce similar records, obscuring its presence. On an eight-site ring, relocating the same detector losses exposes one more crossing on the easiest background route to hide, without changing the dynamics or leading link signal. At fixed error and a common observation-time scaling, the tolerated missed fraction and time-bin width follow fourth-root rather than square-root scaling with link strength. These requirements hold for every decision using the counting record and are met using three event counts per bin, with all elapsed time included. At the same stationary collected flux, where jumps are monitored can therefore determine the time resolution needed for weak-link sensing.

Related

  1. Nonuniform iterative phasing framework and sampling requirements for 3D dynamical inversion from coherent surface scattering imaging
    Jeffrey J. Donatelli, Miaoqi Chu, Zixi Hu +4
    Physical Review ResearchPeer-reviewedPublisher termsAtomic, molecular & optical physicsCrossref
  2. Real-Time Requirements and Transferability in Compton Imaging: From the Detector Chain to the Application
    F. Albiol, Elena Larrea Estrelles, Salvador Tortajada +4
    arXivPreprintarXiv licenceFull textApplied physics & instrumentationBiological & medical physicsarXiv
  3. Polarization-insensitive high-efficiency superconducting nanowire single-photon detector
    Xin Xu, Yue Fei, Qi Chen +10
    Optics ExpressPeer-reviewedPublisher termsOptics & photonicsCrossref
  4. Coherent detection in 3D FMCW flash LIDAR with large FOV: part II – heterodyne efficiency in the image plane: erratum
    Anis Daami, Laurent Frey, Florence Rigal +1
    Optics ExpressPeer-reviewedPublisher termsApplied physics & instrumentationCrossref
  5. The efficiency of moderating neutron detector: Monte Carlo simulation, experimental validation, and angular dependence
    Carl R. Brune
    arXivPreprintarXiv licenceFull textApplied physics & instrumentationNuclear physicsarXiv

Cite

BibTeXRIS
BibTeX
@misc{yu2026detector,
  title = {{Detector Placement Relaxes Efficiency Requirements for Detecting a Weak Coherent Link}},
  author = {M. H. Yu and S. Y. Li and X. Z. Zhang},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.00500},
  eprint = {2611.00500},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.00500},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Detector Placement Relaxes Efficiency Requirements for Detecting a Weak Coherent Link
AU  - M. H. Yu
AU  - S. Y. Li
AU  - X. Z. Zhang
PY  - 2026
DA  - 2026/11/01
PB  - arXiv
DO  - 10.48550/arxiv.2611.00500
UR  - https://arxiv.org/abs/2611.00500
AB  - A weak coherent link can produce unusually early arrivals without changing stationary count rates. Missed jumps along routes available without the link can produce similar records, obscuring its presence. On an eight-site ring, relocating the same detector losses exposes one more crossing on the easiest background route to hide, without changing the dynamics or leading link signal. At fixed error and a common observation-time scaling, the tolerated missed fraction and time-bin width follow fourth-root rather than square-root scaling with link strength. These requirements hold for every decision using the counting record and are met using three event counts per bin, with all elapsed time included. At the same stationary collected flux, where jumps are monitored can therefore determine the time resolution needed for weak-link sensing.
ER  -