A team of scientists has succeeded in cooling traveling sound waves in wave-guides considerably further than has previously been possible using laser light. This achievement represents a significant ...

Sound is usually treated as the most familiar of physical phenomena, the background noise of daily life rather than a frontier of fundamental physics. Yet in laboratories around the world, carefully ...

Stanford physicists have developed a “quantum microphone” that can measure individual particles of sound, called phonons. The device could lead to smaller, efficient quantum computers that operate by ...