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arXiv · 2505.04261

Quantum Cryptography Using Momentum and Position Variables in a Simple Optical Arrangement

Alejandro Arias·Baptiste Sevilla
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Abstract

In this work, we explore an experimental implementation of quantum key distribution (QKD) using position and momentum quantum states. By employing a setup that includes a laser, a slit, and lenses to generate a Fourier transform, we demonstrate a variation of the BB84 protocol. Our technique shows how a system with these characteristics can be implemented within a quantum framework.

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Alejandro Arias, Baptiste Sevilla. 2025-05-07. Quantum Cryptography Using Momentum and Position Variables in a Simple Optical Arrangement. https://arxiv.org/abs/2505.04261

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