Light has always been the stage on which quantum mechanics performs its strangest tricks, and the double-slit experiment is ...

Now, two unrelated-but-similar experiments confirm that, in a double-slit experiment, detection of a photon’s path (its ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of physics.

A team of quantum physicists has taken a concept that once lived purely in equations and turned it into hardware reality, ...

Take, for instance, quantum entanglement, which says that the state of one particle can be determined by examining the state ...

Quantum mechanics is weird. When you think you have reached the bottom of its weirdness, you always discover a new ...

"These single atoms are like the smallest slits you could possibly build." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For over 100 years, ...

Schematic of the MIT experiment: Two single atoms floating in a vacuum chamber are illuminated by a laser beam and act as the two slits. The interference of the scattered light is recorded with a ...

There is a glaring gap in our knowledge of the physical world: none of our well-established theories describe gravity’s quantum nature. Yet physicists expect that this quantum nature is essential for ...

Quantum physics is often described as the most successful scientific framework in history. In its 100 years of existence, it has explained everything from the periodic table of the elements to how ...

Researchers and students can now remotely run new kinds of quantum experiments on campus at the University of Michigan, thanks to the establishment of a quantum testbed that links two labs with ...