Quantum field theory (QFT) provides a comprehensive framework for describing the fundamental interactions of matter and radiation. In the context of atom‐field interactions, QFT elucidates how atoms ...

While William Rowan Hamilton isn’t a household name like, say, Einstein or Hawking, he might have been. It turns out the Irish mathematician almost stumbled on quantum theory in the or ...

Researchers find that a photon can spend a negative amount of time in an excited atomic state while passing through a cloud ...

The precise imaging of many-body systems, which are comprised of many interacting particles, can help to validate theoretical ...

Max Planck is widely recognized as the father of quantum theory for his groundbreaking work on energy quanta. His initial ...

Not every day does “time” get into misbehavior, but in a new experiment, photons passing through a fog of ultracold rubidium-85 atoms were shown to spend a negative duration in an excited atomic state ...

An international collaboration sheds new light on the relationship between quantum theory and thermodynamics. The research group demonstrated that while the laws of quantum theory alone do not ...

Physicists have unveiled a new type of time crystal that is governed by quantum behavior that conflicts with classical models ...

This year is the International Year of Quantum Science and Technology, according to UNESCO, marking 100 years since quantum mechanics was proposed. The theory hardly needed the extra publicity, though ...

A new calculation shows how five atoms interact in the Efimov effect. It marks a major leap in quantum physics. Matter behaves weirdly at the quantum scale, one of the strangest examples being the ...