Authors: George Rajna
A new theory proposes that faster-than-light particles known as tachyons could answer a lot of questions about the universe, writes Robyn Arianrhod.  In a recent publication, Aalto University researchers show that in a transparent medium each photon is accompanied by an atomic mass density wave.  New research has made it possible for the first time to compare the spatial structures and positions of two distant objects, which may be very far away from each other, just by using a simple thermal light source, much like a star in the sky.  In an arranged marriage of optics and mechanics, physicists have created microscopic structural beams that have a variety of powerful uses when light strikes them.  At EPFL, researchers challenge a fundamental law and discover that more electromagnetic energy can be stored in wave-guiding systems than previously thought.  The fact that light can also behave as a liquid, rippling and spiraling around obstacles like the current of a river, is a much more recent finding that is still a subject of active research.  An international team of physicists has monitored the scattering behavior of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.  Researchers from the University of Illinois at Urbana-Champaign have demonstrated a new level of optical isolation necessary to advance on-chip optical signal processing. The technique involving light-sound interaction can be implemented in nearly any photonic foundry process and can significantly impact optical computing and communication systems.  City College of New York researchers have now demonstrated a new class of artificial media called photonic hypercrystals that can control light-matter interaction in unprecedented ways.  Experiments at the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw prove that chemistry is also a suitable basis for storing information. The chemical bit, or 'chit,' is a simple arrangement of three droplets in contact with each other, in which oscillatory reactions occur. 
Comments: 40 Pages.
[v1] 2017-07-02 05:27:39
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