Authors: George Rajna
Researchers have developed a simple and stable device to generate the quantum states necessary for quantum key distribution.  A collaborative team, led by scientists from the University of Technology Sydney (UTS), developed a highly-sensitive nano-thermometer that uses atom-like inclusions in diamond nanoparticles to accurately measure temperature at the nanoscale.  Imagine being able to shape a pulse of light in any conceivable manner-compressing it, stretching it, splitting it in two, changing its intensity or altering the direction of its electric field.  When exposed to intense laser pulses, the magnetization of a material can be manipulated very fast.  A new laser-pointing platform developed at MIT may help launch miniature satellites into the high-rate data game.  Lasers that emit ultrashort pulses of light are critical components of technologies, including communications and industrial processing, and have been central to fundamental Nobel Prize-winning research in physics.  A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity.  The unique platform, which is referred as a 4-D microscope, combines the sensitivity and high time-resolution of phase imaging with the specificity and high spatial resolution of fluorescence microscopy.  The experiment relied on a soliton frequency comb generated in a chip-based optical microresonator made from silicon nitride.  This scientific achievement toward more precise control and monitoring of light is highly interesting for miniaturizing optical devices for sensing and signal processing.  It may seem like such optical behavior would require bending the rules of physics, but in fact, scientists at MIT, Harvard University, and elsewhere have now demonstrated that photons can indeed be made to interact-an accomplishment that could open a path toward using photons in quantum computing, if not in light sabers. 
Comments: 73 Pages.
[v1] 2019-05-06 13:26:19
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