4 papers
A Wigner-based volumetric transport framework for paraxial waves in random media
Arnaud Coatanhay, Thomas Bonnafont, Angélique Dremeau
We develop a Wigner-based phase-space framework for mean paraxial wave propagation in random media. Starting from the random parabolic wave equation, we derive the exact evolution…
Stellar Braid Monodromy of Finite-Rank Non-Gaussian Photonic States
Arnaud Coatanhay, Angelique Dremeau
Finite-rank non-Gaussian bosonic states admit a holomorphic description in the Bargmann representation: after a zero-free Gaussian factor is separated off, their non-Gaussian struc…
Free-Space CV-QKD with Single-Mode Fiber Reception: Effective Coupling Statistics and Protocol-Dependent Reference Noise
Hesham S. Ibrahim, Arnaud Coatanhay
We study free-space continuous-variable quantum key distribution (CV-QKD) with single-mode fiber (SMF) reception under atmospheric turbulence. The optical channel is modeled by spl…
From State-Space Transport to Measurement-Aware Distinguishability in Quantum Sensing
Arnaud Coatanhay, Angélique Drémeau
Overlap-based distinguishability measures, such as fidelity- or Chernoff-type quantities, play a central role in quantum sensing and quantum illumination. In strongly lossy and flu…