Quantcast

Latest Photon Stories

Digital Encryption At The Quantum Level
2012-11-20 10:38:18

Michael Harper for redOrbit.com — Your Universe Online Toshiba and Cambridge University have been working together to find a cheaper and more efficient way to protect networks from criminal thievery and spying. To find the answer, these two teams looked to quantum physics, landing on a solution which allows high-speed fiber cables to be just as secure as dedicated fiber optics lines. Though this advance will likely first appear in government and military networks, this method could...

Supercharged Atoms Force Rethink On Existing Theories
2012-11-12 12:21:38

Brett Smith for redOrbit.com - Your Universe Online An international team of researchers has created ionized xenon atoms so positively charged that scientists involved in the study are now saying the existing theories need to be reexamined. Using the world´s most powerful laser, the Linac Coherent Light Source (LCLS) at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory at Stanford University, the physicists were able to kick out up to 36 electrons from a...

Researchers Reveal New Method For Entangling Photons
2012-11-03 08:24:56

April Flowers for redOrbit.com - Your Universe Online A research team led by the University of Vienna has developed a new method for entangling single photons that gyrate in opposite directions. This is the first step towards entangling and twisting even macroscopic, spatially separated objects in two different directions, according to the team. The findings of this study have been published in the journal Science. Quantum physics is the theory of lightweight objects such as atoms or...

Measuring State Of The Art Beams In Table Top Accelerator
2012-10-25 09:00:23

Studies by Berkeley Lab scientists of electron beam quality in laser plasma accelerators include novel tests for slice-energy spread Part Two: Slicing through the electron beam Wim Leemans of Berkeley Lab´s Accelerator and Fusion Research Division heads LOASIS, the Laser and Optical Accelerator Systems Integrated Studies, an oasis indeed for students pursuing graduate studies in laser plasma acceleration (LPA). Among the most promising applications of future table-top accelerators...

Optical Vortex Beams Placed On Chip
2012-10-19 13:46:28

Lee Rannals for redOrbit.com — Your Universe Online Scientists have demonstrated integrated arrays of emitters of "optical vortex beams" onto a silicon chip for the first time. Light in these beams, as reported to the journal Science, does not propagate in straight rays, but instead travels in a spiral fashion in a hollow conical beam shape. The beams look like a vortex or cyclone, with its light rays "twisted" either left-handed or right-handed. The researchers wrote that...

Interstellar Travel May Be Easier Thanks To New Findings
2012-10-10 09:04:25

April Flowers for redOrbit.com - Your Universe Online Last month in Houston, Texas, Former President Bill Clinton addressed the 100 Year Starship Symposium to express his support for interstellar travel. The Symposium is an international event advocating for human expansion into other star systems. Interstellar travel for humans will depend upon extremely precise measurements of every factor of the mission, and the knowledge of these factors may be improved by the solution to a puzzle...

Two Physicists Win Nobel Prize For Physics in 2012
2012-10-10 06:21:26

Lawrence LeBlond for redOrbit.com - Your Universe Online Two physicists, one from the United States and one from France, were revealed on Tuesday October 9, 2012 as winners of the Nobel Prize in Physics. The physicists were recognized for their work in developing techniques to study the relationships of light and matter, and how this relationship could lead to new super fast computers and the most “precise” clocks ever built, according to the Nobel Prize committee in Norway....

shutterstock_838492
2012-09-08 08:49:33

April Flowers for redOrbit.com — Your Universe Online Since 1927, when Werner Heisenberg formulated the uncertainty principle, it has stood as one of the cornerstones of quantum mechanics. In a simplified form, the uncertainty principle states that it is impossible to measure anything without disturbing it. For example, any attempt to measure a particle's position must randomly change its speed. For clarity's sake, one should be aware that the uncertainty principle is not the same...

Quantum Teleportation Team Breaks The Distance Record
2012-09-06 11:12:39

April Flowers for redOrbit.com - Your Universe Online An international team of researchers, including physicists from the University of Vienna and the Austrian Academy of Sciences, has achieved quantum teleportation over a record distance of 143 kilometers. The experiment marks a major step towards satellite-based quantum communication. The team transmitted quantum states between the two Canary Islands of La Palma and Tenerife over a distance of 143 kilometers, beating the previous...

How Light Changes Matter Measured By Synchronized Lasers
2012-08-29 14:06:05

Berkeley Lab scientists and their colleagues have successfully probed the effects of light at the atomic scale by mixing x-ray and optical light waves at the Linac Coherent Light Source Light changes matter in ways that shape our world. Photons trigger changes in proteins in the eye to enable vision; sunlight splits water into hydrogen and oxygen and creates chemicals through photosynthesis; light causes electrons to flow in the semiconductors that make up solar cells; and new devices for...


Latest Photon Reference Libraries

6_c9b95f985acbe749f13bf6301a3180a85
2004-10-19 04:45:41

Electromagnetic Spectrum -- The electromagnetic spectrum describes the various types of electromagnetic radiation based on their wavelengths. Radio, representing wavelengths from a few feet to well over a mile, is at one end of the spectrum. Gamma ray radiation is at the other end: the wavelength of the harder types is so short, in the subatomic range, that we do not have instruments capable of directly measuring it. While the above classification scheme is generally accurate, in...

6_c9b95f985acbe749f13bf6301a3180a84
2004-10-19 04:45:41

Electromagnetic Radiation -- Electromagnetic radiation is a combination of oscillating electric and magnetic fields propagating through space and carrying energy from one place to another. Light is a form of electromagnetic radiation. The theoretical study of electromagnetic radiation is called electrodynamics, a subfield of electromagnetism. When any wire (or other conducting object such as an antenna) conducts alternating current, electromagnetic radiation is propagated at the same...

More Articles (2 articles) »
Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
Related