Researchers at the University of Colorado have recently developed a new technique to measure mechanical motion using simultaneous electromechanical amplification and cooling processes. Their method, ...

Astronomers report that they have measured the slowest ever motion of a galaxy across the plane of the sky. This distant whirlpool of stars appears to creep along despite its actual speed through ...

Squeezed state: illustration of how increasing the uncertainty in one variable can decrease the uncertainty in another. (Courtesy: D Slichter and S Burd/NIST) A quantum squeezing and amplification ...

Researchers at the National Institute of Standards and Technology (NIST) have harnessed the phenomenon of “quantum squeezing” to amplify and measure the motion of a magnesium ion as it travelled a few ...

When carrying out ultrasensitive continuous measurements of position, one must ultimately confront the fundamental effects of detection back-action. Back-action forces set a lower bound on the ...