English

Quantum Classical Correspondence Using Coherent State Measurements and Husimi Q Probability Distributions

Quantum Physics 2025-10-21 v1

Abstract

We propose and simulate a protocol to evolve a quantum particle forward in time such that its trajectory closely matches that of the particle's Newtonian counterpart. Using short bursts of Schr\"odinger time-evolution interleaved with positive operator-valued measurements (POVMs) in the coherent basis, we demonstrate quantum-classical convergence for durations far beyond Schr\"odinger time-evolution alone. We examine the impact of the time between measurements Δt\Delta t and the reduced Planck's constant \hbar on divergence time. Results indicate that for appropriate values of Δt\Delta t, smaller values of \hbar lead to longer divergence times. This method suggests a elegant, intuitive bridge to recover classical motion from quantum postulates.

Keywords

Cite

@article{arxiv.2510.16027,
  title  = {Quantum Classical Correspondence Using Coherent State Measurements and Husimi Q Probability Distributions},
  author = {Youheng Zheng},
  journal= {arXiv preprint arXiv:2510.16027},
  year   = {2025}
}
R2 v1 2026-07-01T06:44:00.625Z