MIT and Harvard break quantum limit with world’s most accurate optical clock

Every second of modern life runs on precision — from GPS navigation to the time signals that keep the internet in sync. But ...

Quantum radio antenna uses Rydberg states for sensitive, all-optical signal detection

A team from the Faculty of Physics and the Center for Quantum Optical Technologies at the University of Warsaw has developed a new type of all-optical radio receiver based on the fundamental ...
American Institute of Physics

Fast, high quality random numbers from irradiated Josephson junctions

High frequency radio waves applied to Josephson junctions produce chaotic noise that could improve cryptographic algorithms ...
IEEE

Length-Versatile and Few-Shot Radio Frequency Fingerprint Identification Using Unsupervised Self-Distillation

Abstract: Due to the uniqueness and stability of radio frequency fingerprints (RFF), radio frequency fingerprint identification (RFFI) is an important physical layer authentication method in the ...

Directed radio frequency plausible cause of 'Havana syndrome,' U.S. govt report finds

"Directed" radio frequency is the most plausible explanation for mysterious symptoms experienced by diplomats stationed in U.S. embassies in Havana and elsewhere, a U.S. government report said on ...