Physicists have developed a spectral-filtering technique that strips away unwanted extra photons from quantum light sources, ...

For decades, astronomers have been puzzled by strange “zebra stripe” patterns in radio waves from the Crab Pulsar — bright bands separated by complete darkness. Now, new research suggests the answer ...

Abstract: This paper presents a study pertinent to the direction-of-arrival estimation in terms of received signal strengths using a beam-scanning array antenna. To improve the estimation accuracy, ...