The best way to find buried treasure may be with a quantum gravity sensor. In these devices, free-falling atoms reveal subtle variations in Earth’s gravitational pull at different places. Those…
Category: Quantum Physics
‘From Data to Quanta’ defends Niels Bohr’s view of quantum mechanics
From Data to QuantaSlobodan PerovićUniv. of Chicago, $45 Ever since Max Planck introduced the idea of the quantum to the world, physicists have argued about whether reality is more like…
The quantum ‘boomerang’ effect has been seen for the first time
Some quantum particles gotta get right back to where they started from. Physicists have confirmed a theoretically predicted phenomenon called the quantum boomerang effect. An experiment reveals that, after being…
Quantum particles can feel the influence of gravitational fields they never touch
If you’re superstitious, a black cat in your path is bad luck, even if you keep your distance. Likewise, in quantum physics, particles can feel the influence of magnetic fields…
A century of quantum mechanics questions the fundamental nature of reality
Scientists are like prospectors, excavating the natural world seeking gems of knowledge about physical reality. And in the century just past, scientists have dug deep enough to discover that reality’s…
Quantum physics requires imaginary numbers to explain reality
Imaginary numbers might seem like unicorns and goblins — interesting but irrelevant to reality. But for describing matter at its roots, imaginary numbers turn out to be essential. They seem…
Scientists finally detected a quantum effect that blocks atoms from scattering light
A cloud of ultracold atoms is like a motel with a neon “no vacancy” sign. If a guest at the motel wants to switch rooms, they’re out of luck. No…
Physicists have coaxed ultracold atoms into an elusive form of quantum matter
An elusive form of matter called a quantum spin liquid isn’t a liquid, and it doesn’t spin — but it sure is quantum. Predicted nearly 50 years ago, quantum spin…
One of nature’s key constants is much larger in a quantum material
A crucial number that rules the universe goes big in a strange quantum material. The fine-structure constant is about 10 times its normal value in a type of material called…
Scientists are one step closer to error-correcting quantum computers
Mistakes happen — especially in quantum computers. The fragile quantum bits, or qubits, that make up the machines are notoriously error-prone, but now scientists have shown that they can fix…
