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# Quantum information theory

## Latest Articles

### Physicists Use Quantum Mechanics to Pull Energy out of Nothing

The quantum energy teleportation protocol was proposed in 2008 and largely ignored. Now two independent experiments have shown that it works.

### New Algorithm Closes Quantum Supremacy Window

Random circuit sampling, a popular technique for showing the power of quantum computers, doesn’t scale up if errors go unchecked.

### Physicists Create a Holographic Wormhole Using a Quantum Computer

The unprecedented experiment explores the possibility that space-time somehow emerges from quantum information.

### Physicists Rewrite a Quantum Rule That Clashes With Our Universe

The past and the future are tightly linked in conventional quantum mechanics. Perhaps too tightly. A tweak to the theory could let quantum possibilities increase as space expands.

### Physicists Rewrite the Fundamental Law That Leads to Disorder

The second law of thermodynamics is among the most sacred in all of science, but it has always rested on 19th century arguments about probability. New arguments trace its true source to the flows of quantum information.

### Pondering the Bits That Build Space-Time and Brains

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.

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

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

### The New Thermodynamic Understanding of Clocks

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

### The Year in Math and Computer Science

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