quantum cryptography – Quanta Magazine https://www.quantamagazine.org Illuminating science Mon, 16 Sep 2024 14:10:47 -0400 en-US hourly 1 https://wordpress.org/?v=6.2 How Does Math Keep Secrets? https://www.quantamagazine.org/how-does-math-keep-secrets-20240801/ https://www.quantamagazine.org/how-does-math-keep-secrets-20240801/#respond Thu, 01 Aug 2024 13:30:04 +0000 https://www.quantamagazine.org/?p=139467 The post How Does Math Keep Secrets? first appeared on Quanta Magazine

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Can you keep a secret? Modern techniques for maintaining the confidentiality of information are based on mathematical problems that are inherently too difficult for anyone to solve without the right hints. Yet what does that mean when quantum computers capable of solving many problems astronomically faster are on the horizon? In this episode, host Janna Levin talks with computer scientist Boaz...

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Cryptographers Discover a New Foundation for Quantum Secrecy https://www.quantamagazine.org/cryptographers-discover-a-new-foundation-for-quantum-secrecy-20240603/ https://www.quantamagazine.org/cryptographers-discover-a-new-foundation-for-quantum-secrecy-20240603/#respond Mon, 03 Jun 2024 15:45:06 +0000 https://www.quantamagazine.org/?p=138291 The post Cryptographers Discover a New Foundation for Quantum Secrecy first appeared on Quanta Magazine

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Say you want to send a private message, cast a secret vote or sign a document securely. If you do any of these tasks on a computer, you’re relying on encryption to keep your data safe. That encryption needs to withstand attacks from codebreakers with their own computers, so modern encryption methods rely on assumptions about what mathematical problems are hard for computers to solve.

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The Year in Computer Science https://www.quantamagazine.org/the-biggest-discoveries-in-computer-science-in-2023-20231220/ https://www.quantamagazine.org/the-biggest-discoveries-in-computer-science-in-2023-20231220/#respond Wed, 20 Dec 2023 19:11:09 +0000 https://www.quantamagazine.org/?p=133277 The post The Year in Computer Science first appeared on Quanta Magazine

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In 2023, artificial intelligence dominated popular culture — showing up in everything from internet memes to Senate hearings. Large language models such as those behind ChatGPT fueled a lot of this excitement, even as researchers still struggled to pry open the “black box” that describes their inner workings. Image generation systems also routinely impressed and unsettled us with their artistic...

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The Year in Computer Science https://www.quantamagazine.org/the-biggest-discoveries-in-computer-science-in-2022-20221221/ https://www.quantamagazine.org/the-biggest-discoveries-in-computer-science-in-2022-20221221/#respond Wed, 21 Dec 2022 14:55:57 +0000 https://www.quantamagazine.org/?p=121398 The post The Year in Computer Science first appeared on Quanta Magazine

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As computer scientists tackle a greater range of problems, their work has grown increasingly interdisciplinary. This year, many of the most significant computer science results also involved other scientists and mathematicians. Perhaps the most practical involved the cryptographic questions underlying the security of the internet, which tend to be complicated mathematical problems.

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New Entanglement Results Hint at Better Quantum Codes https://www.quantamagazine.org/new-entanglement-results-hint-at-better-quantum-codes-20221024/ https://www.quantamagazine.org/new-entanglement-results-hint-at-better-quantum-codes-20221024/#respond Mon, 24 Oct 2022 14:08:23 +0000 https://www.quantamagazine.org/?p=120011 The post New Entanglement Results Hint at Better Quantum Codes first appeared on Quanta Magazine

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This month, three scientists won the Nobel Prize in Physics for their work proving one of the most counterintuitive yet consequential realities of the quantum world. They showed that two entangled quantum particles must be considered a single system — their states inexorably intertwined with each other — even if the particles are separated by great distances. In practice...

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