Curved spacetime in a quantum simulator

The theory of relativity works well when you want to explain cosmic-scale phenomena—such as the gravitational waves created when black holes collide. Quantum theory works well when describing particle-scale phenomena—such ...

Time-delocalized variables violating causal inequalities

A team of researchers from the Université libre de Bruxelles and the French National Center for Scientific Research have shown for the first time that an exotic type of process violating causal inequalities can be realized ...

Researcher solves nearly 60-year-old game theory dilemma

To understand how driverless vehicles can navigate the complexities of the road, researchers often use game theory—mathematical models representing the way rational agents behave strategically to meet their goals.

A new approach to solving the mystery of dark energy (Update)

What is behind dark energy—and what connects it to the cosmological constant introduced by Albert Einstein? Two physicists from the University of Luxembourg point the way to answering these open questions of physics.

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