联合国已将2025年定为“国际量子科学与技术年”。自从100年前首次提出量子力学以来，它已成为我们理解自然界物理规律的基础支柱之一。
The United Nations has declared 2025 the “International Year of Quantum Science and Technology”. Since quantum mechanics was first mentioned 100 years ago, it has been a fundamental pillar of our physical understanding of nature.
此倡议旨在表彰自1925年以来量子科学对技术发展的突破性贡献，并提高全球对其在可持续未来中重要性的认识。
This initiative aims to recognize the groundbreaking contributions of quantum science to technological development since 1925 and to raise global awareness of its importance for a sustainable future.
The “Superposition” (face value CHF 1.20) describes the principle that a quantum system can assume several states simultaneously - only a measurement determines which state is realized.
观察者效应”（面值 1.90 瑞士法郎）指的是对量子系统进行测量会改变其状态的现象。只有通过观察，系统才“决定”处于某一特定状态。
An “Observer effect” (face value CHF 1.90) describes the phenomenon that the measurement of a quantum system changes its state. Only through observation does the system “decide” on a certain state.
“量子纠缠”（面值 2.50 瑞士法郎）是量子物理中最令人着迷的概念之一：两个或多个量子粒子之间保持关联，即使相隔遥远，对一个粒子的状态进行改变，也会立即影响到另一个粒子的状态。
“Entanglement" (face value CHF 2.50) is one of the most fascinating concepts in quantum physics: two or more quantum particles remain connected to each other so that a change in one particle immediately affects the state of the other particle - regardless of the distance.