A series of quantum physics experiments and theoretical papers now suggest that heat can flow spontaneously from a cold object to a hot one, provided the right quantum conditions are in place. This ...

The low-noise, high-gain properties needed for high-performance quantum computing can be realized in a microwave photonic circuit device called a Josephson traveling-wave parametric amplifier (JTWPA), ...

The fragility and laws of quantum physics generally make the characterization of quantum systems time‑consuming. Furthermore, ...

“The theoretical framework we developed explains how quasiparticles emerge in systems with an extremely heavy impurity, ...

Quantum key distribution promises ultra-secure communication by using the strange rules of quantum physics to detect eavesdroppers instantly. But even the most secure quantum link can falter if the ...

At the smallest scales of nature, the rules of the world shift in ways that can feel unsettling and beautiful at the same ...

At the smallest scales of matter, nature behaves in ways that feel almost counterintuitive. Individual particles follow ...

Quantum physics may sound abstract, but Ph.D. candidates Kirsten Kanneworff and David Dechant show that quantum research can also be very concrete. Together, they are investigating how quantum ...

For the modern technology leader, the quest for peak performance has traditionally been a matter of chemistry, an endless ...

An experiment measuring a single atom's recoil confirmed that observing a particle destroys interference, settling the ...

Henry Yuen is developing a new mathematical language to describe problems whose inputs and outputs aren’t ordinary numbers.