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Open Quantum Systems Decoherence Photonic Quantum Computing Entanglement Theory Quantum Correlations

Velocity-Controlled Directional Readout of Single Photons

arXiv
Authors: Mohamed Hatifi

Year

2026

Paper ID

63613

Status

Preprint

Abstract Read

~2 min

Abstract Words

92

Citations

0

Abstract

Photodetection is usually treated in the frame in which the detector is at rest relative to the optical apparatus. We show that uniform motion of an electric Glauber detector changes the single-click POVM realized on two counterpropagating single-photon modes. Motion Doppler-shifts the alternatives in the detector frame; finite bandwidth then converts propagation direction into a detection bias without decohering the photon. For a Lorentzian response near one Doppler branch, the readout crosses from phase-sensitive to direction-sensitive with a quality-factor-enhanced onset. Finite-time integration adds Doppler-beat visibility loss, separating passive covariance from measurement change.

Why This Paper Matters

  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2026 reference point for readers tracking recent quantum research.
  • Photodetection is usually treated in the frame in which the detector is at rest relative to the optical apparatus.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2605.21206 [2] arXiv https://arxiv.org/abs/2605.21206 [3] Publisher https://arxiv.org/abs/2605.21206

Local Citation Graph (Related-Paper Links)

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External citation index: OpenAlex citation signal • updated 2026-06-12 12:32:07

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