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Kevin Hartnett

Kevin Hartnett

Contributing Writer

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Latest Articles

Art for "Mathematicians Discover the Perfect Way to Multiply"
number theory

Mathematicians Discover the Perfect Way to Multiply

By Kevin Hartnett
April 11, 2019
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By chopping up large numbers into smaller ones, researchers have rewritten a fundamental mathematical speed limit.

Art for "Cryptography That Can’t Be Hacked"
computer security

Cryptography That Is Provably Secure

By Kevin Hartnett
April 2, 2019
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Researchers have just released hacker-proof cryptographic code — programs with the same level of invincibility as a mathematical proof.

Art for "In Quantum Games, There’s No Way to Play the Odds"
Abstractions blog

In Quantum Games, There’s No Way to Play the Odds

By Kevin Hartnett
April 1, 2019
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These games combine quantum entanglement, infinity and impossible-to-calculate winning probabilities. But if researchers can crack them, they’ll reveal deep mathematical secrets.

Art for "Proof Finds That All Change Is a Mix of Order and Randomness"
dynamical systems

Proof Finds That All Change Is a Mix of Order and Randomness

By Kevin Hartnett
March 27, 2019
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All descriptions of change are a unique blend of chance and determinism, according to the sweeping mathematical proof of the “weak Pinsker conjecture.”

Art for "The Universe’s Ultimate Complexity Revealed by Simple Quantum Games"
quantum information theory

The Universe’s Ultimate Complexity Revealed by Simple Quantum Games

By Kevin Hartnett
March 5, 2019
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A two-player game can reveal whether the universe has an infinite amount of complexity.

Art for "Smaller Is Better: Why Finite Number Systems Pack More Punch"
Abstractions blog

Smaller Is Better: Why Finite Number Systems Pack More Punch

By Kevin Hartnett
February 11, 2019
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Recent progress on the “sum product” problem recalls a celebrated mathematical result that revealed the power of miniature number systems.

number theory

How a Strange Grid Reveals Hidden Connections Between Simple Numbers

By Kevin Hartnett
February 6, 2019
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A graduate student has helped illuminate a long-suspected connection between addition and multiplication.

artificial intelligence

Foundations Built for a General Theory of Neural Networks

By Kevin Hartnett
January 31, 2019
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Neural networks can be as unpredictable as they are powerful. Now mathematicians are beginning to reveal how a neural network’s form will influence its function.

Art for "Milestone Experiment Proves Quantum Communication Really Is Faster"
quantum computing

Milestone Experiment Proves Quantum Communication Really Is Faster

By Kevin Hartnett
December 19, 2018
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In a Paris lab, researchers have shown for the first time that quantum methods of transmitting information are superior to classical ones.


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