高考英语 3500 词・语境速记【191】|当计算进入量子时代 ——24 个高频词

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For seventy years, computers have worked the same basic way. They process information in binary — zeros and ones, on or off. Every app, every website, every video game runs on this simple principle. But a new kind of computer is emerging that breaks all the rules. It is called a quantum computer, and it could change everything we know about technology.

The difference lies in how information is stored. A normal computer uses bits, which are either zero or one. A quantum computer uses qubits, which can be zero, one, or both at the same time. This sounds absurd, but it is how the universe works at the smallest scale. Because qubits can exist in multiple states simultaneously, quantum computers can explore millions of possibilitys at once, rather than one after another.

The potential applications are enormous. Quantum computers could design new medicines by simulateing the behavior of molecules — something normal computers cannot do accurately. They could break current encryption systems, forcing a complete overhaul of internet security. They could optimize supply chains, traffic systems, and energy grids in ways that save billions. But we are not there yet. Current quantum computers are still in their infancy, with only a few dozen qubits and high error rates.

The race to build a practical quantum computer is one of the greatest scientific challenges of our time. Countries and companies are investing billions. But the real question is not who will build it first. The real question is whether we are prepared for what it will bring. Every major technology shift has created both opportunity and risk. Quantum computing will be no different. The best preparation is not fear. It is understanding — understanding enough to ask the right questions and make the right choices when the time comes.

七十年来，计算机一直以同样的基本方式工作。它们以二进制处理信息——零和一，开或关。每个应用、每个网站、每个电子游戏都运行在这个简单原则上。但一种新型计算机正在出现，它打破所有规则。它叫量子计算机，可能改变我们对技术的一切认知。区别在于信息如何存储。普通计算机使用比特，要么是零要么是一。量子计算机使用量子比特，可以是零、是一、或同时是两者。这听起来荒谬，但这是宇宙在最小尺度上的运作方式。因为量子比特可以同时存在于多个状态，量子计算机可以一次探索数百万种可能性，而不是一个接一个。潜在应用是巨大的。量子计算机可以通过模拟分子行为设计新药——普通计算机无法准确做到的事。它们可以破解当前的加密系统，迫使互联网安全彻底改革。它们可以优化供应链、交通系统和能源网络，节省数十亿。但我们还没到那一步。当前量子计算机仍处于初期，只有几十个量子比特和高错误率。建造实用量子计算机的竞赛是我们时代最伟大的科学挑战之一。国家和公司正在投资数十亿。但真正的问题不是谁先建出来。真正的问题是我们是否准备好了它将带来的东西。每次重大技术变革都创造了机会和风险。量子计算也不会不同。最好的准备不是恐惧。是理解——理解足够多，在时机到来时提出正确的问题、做出正确的选择。