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information theory

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An illustration of a black hole made out of computer circuits.
quantum information theory

In New Paradox, Black Holes Appear to Evade Heat Death

By George Musser
June 6, 2023
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The puzzling behavior of black hole interiors has led researchers to propose a new physical law: the second law of quantum complexity.

A cube full of colorful shapes is connected to a smaller cube stuffed with the same shapes.
information theory

Data Compression Drives the Internet. Here’s How It Works.

By Elliot Lichtman
May 31, 2023
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One student’s desire to get out of a final exam led to the ubiquitous algorithm that shrinks data without sacrificing information.

information theory

Secret Messages Can Hide in AI-Generated Media

By Stephen Ornes
May 18, 2023
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In steganography, an ordinary message masks the presence of a secret communication. Humans can never do it perfectly, but a new study shows it’s possible for machines.

Illustration of Russian dolls sitting inside a larger Russian doll.
combinatorics

Google Researcher, Long Out of Math, Cracks Problem About Sets

By Kevin Hartnett
January 3, 2023
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On nights and weekends, Justin Gilmer attacked an old question in pure math using the tools of information theory.

2022 in Review

The Year in Computer Science

By Bill Andrews
December 21, 2022
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Computer scientists this year learned how to transmit perfect secrets, why transformers seem so good at everything, and how to improve on decades-old algorithms (with a little help from AI).

cryptography

New Entanglement Results Hint at Better Quantum Codes

By Allison Parshall
October 24, 2022
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A team of physicists has entangled three photons over a considerable distance, which could lead to more powerful quantum cryptography.

Harry Halpin in a T-shirt and sports coat outdoors
Q&A

The Computer Scientist Who’s Boosting Privacy on the Internet

By Steve Nadis
October 18, 2022
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Harry Halpin wants our internet conversations to be more private. He’s helped create a new kind of network that might make it possible.

A spacecraft, laptop, QR code and CD
information theory

How Mathematical Curves Enable Advanced Communication

By Jordana Cepelewicz
September 19, 2022
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A simple geometric idea has been used to power advances in information theory, cryptography and even blockchain technology.

Illustration of thumbs flipping coins.
information theory

How Shannon Entropy Imposes Fundamental Limits on Communication

By Kevin Hartnett
September 6, 2022
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What’s a message, really? Claude Shannon recognized that the elemental ingredient is surprise.


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