English

Passive state preparation for quantum key distribution with phase encoding

Quantum Physics 2025-07-30 v1

Abstract

We propose here a method of passive state preparation for quantum key distribution with phase encoding based on the measurement of the phase difference between pulses of a gain-switched laser. The features of the optical scheme of the transmitter are discussed and the results of computer simulation are presented to demonstrate the effectiveness of the proposed method.

Keywords

Cite

@article{arxiv.2507.21659,
  title  = {Passive state preparation for quantum key distribution with phase encoding},
  author = {Roman Shakhovoy},
  journal= {arXiv preprint arXiv:2507.21659},
  year   = {2025}
}
R2 v1 2026-07-01T04:23:44.410Z