Welcome to this week’s update on quantum computing. Today, we look at a new limit in theory, a launch in post-quantum ...

Believe it or not, the quantum vacuum... isn't completely empty. It has tiny vibrations or “sparks” of energy. If an object ...

But Luis Jauregui’s work, which might power quantum computers needed for long-range space exploration, also shows how basic ...

In theory, quantum physics can bypass the hard mathematical problems at the root of modern encryption. A new proof shows how.

In the strange world of quantum mechanics, objects can exist in several states at once. This concept, called superposition, is one of the most puzzling features of quantum theory. A particle, for ...

"We have found a surprisingly simple solution to an important problem in physics," says Prof. Jens Eisert, a theoretical physicist at Freie Universität Berlin and HZB. "Our results provide a solid ...

A survey of Scientific American’s century of quantum coverage helps explain the enduring popularity of strange physics ...

Physicists construct theories to describe nature. Let us explain it through an analogy with something that we can do in our everyday life, like going on a hike in the mountains. To avoid getting lost, ...

A method known as quantum key distribution has long held the promise of communication security unattainable in conventional cryptography. An international team of scientists has now demonstrated ...

In 1931, Harvey Elliott White developed a device that traced out the shapes of electron clouds by approximating solutions to ...

The original version of this story appeared in Quanta Magazine. Say you want to send a private message, cast a secret vote, or sign a document securely. If you do any of these tasks on a computer, you ...

Imagine a physicist observing a quantum system whose behavior is akin to a coin toss: it could come up heads or tails. They perform the quantum coin toss and see heads. Could they be certain that ...