Karmela Padavic-Callaghan

According to Newton’s third law, all actions are paired with reciprocal reactions. But breaking this principle allowed an artificial swimmer to move upstream in a quantum stream of light

To succeed at scale, quantum computing must differentiate itself from AI, says columnist Karmela Padavic-Callaghan. But the two technologies are already mixed up in the eyes of the public

Shown at the New York Film Festival, John Torres’s film The Remotes tells of a mysterious app that seems to be controlling drivers' bodies, causing them to crash. It is challenging but worth it, says Karmela Padavic-Callaghan

Error-proofing the most important operations performed on a quantum computer has so far required lots of resources, but a new experiment shows a more efficient way to make the devices reliable

Starting in January, students attending Skyview High School in Virginia will learn about the building blocks and principles underlying quantum computers by working with one directly

Useful quantum computers will have to use many “logical qubits” as their computational building blocks, and researchers just broke the record for how reliable they can be

After trapping a positron for the first time, physicists plan to use the resulting data to look for answers to one of particle physics’ biggest questions

Terence Tao, one of the world's great mathematicians, urges us to find empowerment in numbers in his new book Six Maths Essentials. Karmela Padavic-Callaghan is convinced

An experiment has produced nanoflares similar to those seen on the sun, and shown that they can help explain why the outer layers of the solar atmosphere are so hot

An experiment has produced nanoflares similar to those seen on the sun, and shown that they can help explain why the outer layers of the solar atmosphere are so hot