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quantum information theory

A man sits at a table in the middle of a wood-paneled library, perusing a large book.
Q&A

Pondering the Bits That Build Space-Time and Brains

By Charlie Wood
April 20, 2022
Read Later

Vijay Balasubramanian investigates whether the fabric of the universe might be built from information, and what it means that physicists can even ask such a question.

Blurry figures representing quantum officers are arranged in a grid against a black background.
mathematical physics

Euler’s 243-Year-Old ‘Impossible’ Puzzle Gets a Quantum Solution

By Daniel Garisto
January 10, 2022
Read Later

A surprising new solution to Leonhard Euler’s famous “36 officers puzzle” offers a novel way of encoding quantum information.

Illustration of various kinds of clocks floating against a pink background.
quantum information theory

The New Thermodynamic Understanding of Clocks

By Natalie Wolchover
August 31, 2021
Read Later

Investigations of the simplest possible clocks have revealed their fundamental limitations — as well as insights into the nature of time itself.

2020 in Review

The Year in Math and Computer Science

By Bill Andrews
December 23, 2020
Read Later

Even as mathematicians and computer scientists proved big results in computational complexity, number theory and geometry, computers proved themselves increasingly indispensable in mathematics.

Illustration of a black hole
Hidden Structure

The Most Famous Paradox in Physics Nears Its End

By George Musser
October 29, 2020
Read Later

In a landmark series of calculations, physicists have proved that black holes can shed information.

Animated illustration of a hand emerging from a black hole, while drawing the black hole by connecting dots flashing 0 and 1.
Quantized Columns

Spotting Quantum Black Holes in the Lab

By John Preskill
July 15, 2020
Read Later

Can we test speculations about how quantum physics affects black holes and the Big Bang?

theoretical physics

Does Time Really Flow? New Clues Come From a Century-Old Approach to Math.

By Natalie Wolchover
April 7, 2020
Read Later

The laws of physics imply that the passage of time is an illusion. To avoid this conclusion, we might have to rethink the reality of infinitely precise numbers.

Animation showing toy-like depictions of computer science, quantum mechanics and pure math affecting each other.
computational complexity

Landmark Computer Science Proof Cascades Through Physics and Math

By Kevin Hartnett
March 4, 2020
Read Later

Computer scientists established a new boundary on computationally verifiable knowledge. In doing so, they solved major open problems in quantum mechanics and pure mathematics.

Illustration of black holes connected by a wormhole.
quantum information theory

Wormholes Reveal a Way to Manipulate Black Hole Information in the Lab

By Philip Ball
February 27, 2020
Read Later

A proposal for building wormhole-connected black holes offers a way to probe the paradoxes of quantum information.


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