Physicists have designed a set of quantum control protocols that can make a monitored quantum process look as though time is flowing backward, forward at a different speed, or in no clear direction at ...

In the world of quantum physics, the rules that govern reality behave in ways that challenge what we think we know. Particles can be in two places at once. Actions on one particle can instantly affect ...

Here’s what you’ll learn when you read this story: Navascués compares the phenomenon to different movie-watching experiences. “In a theater [classical physics], a movie is projected from beginning to ...

Quantum computers could solve certain problems that would take traditional classical computers an impractically long time to solve. At the Japan Advanced Institute of Science and Technology (JAIST), ...

A small mathematical revision to quantum mechanics could effectively limit the purported infinite capacities of quantum computers—if validated, that is.

The Nvidia logo outside the company's offices in Shanghai, China, on Monday, Sept. 22, 2025. The Nvidia logo outside the company's offices in Shanghai, China, on Monday, Sept. 22, 2025.Qilai ...

A time crystal more complex than any made before has been created in a quantum computer. Exploring the properties of this unusual quantum setup strengthens the case for quantum computers as machines ...

In new research published in Physical Review X, scientists have designed quantum control protocols that generate processes more consistent with time flowing backward than forward. The ...