Quantum physics is quietly rewriting the rulebook for how far and how fast humanity might travel beyond Earth. A cluster of ...

Cybersecurity experts often warn that a moment known as Q-Day is nearby—a day when quantum computers will become powerful enough to break all the encryption methods we currently rely on to keep our ...

A new experiment using Google’s Sycamore quantum processor has taken a bold step toward testing ideas from quantum gravity. For the first time, researchers successfully sent quantum information ...

Using a quantum computer to simulate time travel, researchers have demonstrated that, in the quantum realm, there is no "butterfly effect." In the research, information—qubits, or quantum bits—'time ...

The race to build a quantum internet has shifted from theory to engineering, as researchers learn how to send fragile quantum ...

Physicists have coaxed particles of light into undergoing opposite transformations simultaneously, like a human turning into a werewolf as the werewolf turns into a human. In carefully engineered ...