Please provide your email address to receive an email when new articles are posted on . While reading the ophthalmic journals, I’ve often wished for a column that would explain some of the basic ...

The quantum states of two laser pulses—coherent states—are never mutually orthogonal, making perfect discrimination impossible. Even so, coherent states can achieve the ultimate quantum limit for ...

The Five-hundred-meter Aperture Spherical Radio Telescope (FAST), the largest telescope ever built by far, has discovered more than 200 pulsars. PSR J1631+1252 is an isolated normal pulsar with a ...

Long-distance communications in space may be easier now that researchers at the National Institute of Standards and Technology (NIST) and Jet Propulsion Laboratory (JPL) have designed a clever ...

Radio frequency (RF) refers to the part of the electromagnetic spectrum where electromagnetic waves can be generated by alternating current fed to an antenna. It spans from around 3 kHz to 300 GHz. RF ...

Korea Maritime and Ocean University scientists have developed a scheme for combined power and data transmission that cuts power consumption at the receiver end. Such combined transmissions, sometimes ...