A carefully designed experiment uses Hardy’s paradox to illustrate lack of local realism. Hardy’s 30-year-old thought exercise has led many researchers to chip away at real versions. If the universe ...

A team of physicists affiliated with multiple institutions in China has measured a pulse of light in 37 dimensions. In their paper published in Science Advances, the group explains that their ...

Reality, as perceived, appears strictly classical, yet experiments confirm that we exist in a quantum world. The bridge between these two domains remains a mystery, fueling debates about the true ...

In the quantum world, our intuitive grasp of past, present and future may not apply. Richard Fisher explores the discombobulating concepts of "negative time" and "retrocausality". Tony Soprano is ...

A carefully designed experiment uses Hardy’s paradox to illustrate lack of local realism. Hardy’s 30-year-old thought exercise has led many researchers to chip away at real versions. If the universe ...