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entanglement

quantum information theory

How to Turn a Quantum Computer Into the Ultimate Randomness Generator

June 19, 2019

Pure, verifiable randomness is hard to come by. Two proposals show how to make quantum computers into randomness factories.

Art for "Computer Scientists Expand the Frontier of Verifiable Knowledge"
quantum information theory

Computer Scientists Expand the Frontier of Verifiable Knowledge

May 23, 2019

The universe of problems that a computer can check has grown. The researchers’ secret ingredient? Quantum entanglement.

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

April 1, 2019

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

The Universe’s Ultimate Complexity Revealed by Simple Quantum Games

March 5, 2019

A two-player game can reveal whether the universe has an infinite amount of complexity.

Art for "How Space and Time Could Be a Quantum Error-Correcting Code"
space-time

How Space and Time Could Be a Quantum Error-Correcting Code

January 3, 2019

The same codes needed to thwart errors in quantum computers may also give the fabric of space-time its intrinsic robustness.

Illustration for "Real-Life Schrödinger’s Cats Probe the Boundary of the Quantum World"
quantum physics

Real-Life Schrödinger’s Cats Probe the Boundary of the Quantum World

June 25, 2018

Recent experiments have put relatively large objects into quantum states, illuminating the processes by which the ordinary world emerges out of the quantum one.

Illustration: balloon modelling as a metaphor for entanglement
insights puzzle

Solution: ‘Taming Quantum Weirdness’

March 10, 2017

A simple analogue could offer insights into one of the most astonishing results of quantum mechanics.

Quantized Columns

Entanglement Made Simple

April 28, 2016

How quantum entanglement connects with the “many worlds” of quantum theory.

quantum physics

Quantum Weirdness Now a Matter of Time

January 19, 2016

Bizarre quantum bonds connect distinct moments in time, suggesting that quantum links — not space-time — constitute the fundamental structure of the universe.