Showing posts with label ScienceDaily: Physics News. Show all posts
Showing posts with label ScienceDaily: Physics News. Show all posts
Physicists have demonstrated one of the quintessential effects of quantum optics -- known as the Hong-Ou-Mandel effect -- with microwaves, whose frequency is 100,000 times lower than that of visible light. The experiment takes quantum optics into a new frequency regime and could eventually lead to new technological applications.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/05/130508093020.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
09:46
The atoms that make up ordinary matter fall down, so do antimatter atoms fall up? Do they experience gravity the same way as ordinary atoms, or is there such a thing as antigravity? Recent results, which measured the ratio of antihydrogen's unknown gravitational mass to its known inertial mass, did not settle the matter. Far from it. If an antihydrogen atom falls downward, its gravitational mass is no more than 110 times greater than its inertial mass. If it falls upward, its gravitational mass is at most 65 times greater. What the results do show is that measuring antimatter gravity is possible, using an experimental method that points toward much greater precision in future.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/04/130430113429.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
09:02
Researchers have solved a long-standing materials science problem, making it possible to create new semiconductor devices using zinc oxide -- including efficient ultraviolet lasers and LED devices for use in sensors and drinking water treatment, as well as new ferromagnetic devices.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/04/130423110815.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
09:01
Applying femtosecond x-ray methods, researchers have observed an extremely fast, collective electron transfer of ~100 molecular ions after excitation of a single electron in a crystal of transition metal complexes.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/04/130416102201.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
09:02
Scientists have taken this to a whole new level by demonstrating that they can store visual images within quite an ethereal memory device -- a thin vapor of rubidium atoms. The effort may prove helpful in creating memory for quantum computers.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/04/130404092829.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
08:02
Scientists report an efficiency of 18.7% for black silicon solar cells, the highest efficiency reported so far for a black silicon solar cell.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/04/130404073009.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
08:02
An international team of physicists has proposed a revolutionary laser system, inspired by the telecommunications technology, to produce the next generation of particle accelerators, such as the Large Hadron Collider.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/03/130328075706.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
07:17
In a breakthrough that could one day yield important clues about the nature of matter itself, scientists have succeeded in measuring the magnetic charge of single particles of matter and antimatter more accurately than ever before.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/03/130325094030.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
07:17
To engineers, it's a tale as old as time: Electrical current is carried through materials by flowing electrons. But physicists have now found that for copper-containing superconductors, known as cuprates, electrons are not enough to carry the current.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/03/130319091727.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
07:17
Carbon nanotubes and magnetic molecules are considered building blocks of future nanoelectronic systems. Their electric and mechanical properties play an important role. Researchers have now found a way to combine both components on the atomic level and to build a quantum mechanical system with novel properties.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/03/130315095919.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
07:16
Researchers report that they have measured the chemical properties of polymer nanostructures as small as 15 nm, using a novel technique called atomic force microscope infrared spectroscopy.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/03/130308183848.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
06:47
Researchers have demonstrated a solid-state refrigerator that uses quantum physics in micro- and nanostructures to cool a much larger object to extremely low temperatures. What's more, the prototype refrigerator, which measures a few inches in outer dimensions, enables researchers to place any suitable object in the cooling zone and later remove and replace it, similar to an all-purpose kitchen refrigerator.



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/03/130308183821.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
06:47
In a step toward understanding and exploiting an exotic form of matter that has been sparking excitement for potential applications in a new genre of supercomputers, scientists are reporting the first identification of a naturally occurring "topological insulator."



via ScienceDaily: Physics News http://www.sciencedaily.com/releases/2013/03/130307110552.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fphysics+%28ScienceDaily%3A+Matter+%26+Energy+News+--+Physics%29
06:02
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