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Last updated on April 23, 2014 at 1:22 EDT

Latest Photon Stories

Detecting Elusive Gravity Waves From The Other End Of The Cosmos
2013-05-18 05:59:14

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Exchange of electromagnetic energy is fairly well understood. The force carrier, the photon, is readily detectable and manipulated, making the physics of electromagnetic radiation easy to study. By contrast, gravitational exchanges pose a much greater challenge. This arises, at least in part, because the gravitational force is so much weaker than that of electricity and magnetism. Also, the force carrier itself, the...

Quantum Internet Prototype In Use At Los Alamos
2013-05-07 15:49:02

Brett Smith for redOrbit.com - Your Universe Online As concerns over cyber security grow with each newly publicized attack, computer scientists have been pursuing quantum technology as a silver bullet against would-be hackers. According to a groundbreaking announcement, scientists at Los Alamos National Labs in New Mexico have been utilizing a small-scale “quantum internet” for the past two years. Quantum cryptography is possible because of the phenomenon known as quantum...

2013-04-25 08:28:28

CARLSBAD, Calif., April 25, 2013 /PRNewswire/ -- GridCOM Technologies, Inc. has secured seed funding to develop its "future-proof" quantum encryption solution that protects vulnerable communications between millions of automation devices currently controlling the electrical grid. Using quantum entangled photons and optical fibers, a decentralized key server is created over a geographic region. For a monthly subscription fee, wired and wireless devices can access this "quantum" key server over...

2013-04-18 16:27:18

COLLEGE STATION, Texas, April 18, 2013 /PRNewswire-USNewswire/ -- In the bizarre world of quantum physics, objects can be in more than one place at a time and future events can change the past. New research involving a Texas A&M University professor makes that microscopic realm even a bit stranger. (Logo: http://photos.prnewswire.com/prnh/20120502/DC99584LOGO) Quantum physicist M. Suhail Zubairy, along with a post-doctoral fellow and Saudi researchers, have discovered a form of...

No More Loopholes For Photons
2013-04-15 14:53:36

University of Vienna A team led by the Austrian physicist Anton Zeilinger has now carried out an experiment with photons, in which they have closed an important loophole. The researchers have thus provided the most complete experimental proof that the quantum world is in conflict with our everyday experience. The results of this study appear this week in the renowned journal Nature (Advance Online Publication/AOP). When we observe an object, we make a number of intuitive assumptions,...

Einstein's "Spooky Action" Theory Could Be Tested Aboard Space Station
2013-04-10 12:02:29

April Flowers for redOrbit.com - Your Universe Online "Spooky action at a distance" is how Albert Einstein rather famously described the theory of quantum entanglement. Until now, however, experiments attempting to examine this peculiar quantum mechanical phenomenon have been limited to relatively small distances on Earth. Researchers have proposed a solution to this in a new study published in the New Journal of Physics. To test the limits of Einstein's "spooky action" and potentially...

German Researchers Take Next Step In Quantum Communications
2013-04-03 14:44:48

Brett Smith for redOrbit.com - Your Universe Online Quantum-based communications is still in its infancy, but the technology is widely expected to become used as the next generation of secure data transfer. According to a new report in Nature Photonics, a group of German physicists has announced the successful transmission of a quantum security key from an aircraft to a ground station via laser, overcoming one of the technology´s biggest hurdles: the ability to transmit and receive...

Major Step Towards Quantum 'Internet' Signaled By Laser-like Photons
2013-03-19 13:30:09

University of Cambridge The realization of quantum networks is one of the major challenges of modern physics. Now, new research shows how high-quality photons can be generated from 'solid-state' chips, bringing us closer to the quantum 'internet'. The number of transistors on a microprocessor continues to double every two years, amazingly holding firm to a prediction by Intel co-founder Gordon Moore almost 50 years ago. If this is to continue, conceptual and technical advances...

Einstein's 134th Birthday
2013-03-14 14:34:12

Brett Smith for redOrbit.com - Your Universe Online Albert Einstein, almost unanimously considered the greatest physicist since Sir Isaac Newton, would have turned 134 today. His legacy can still be seen in modern society — in the revelations being made by physicists around the world and by his theories that they are still struggling to comprehend. "I am convinced that (God) does not play dice." Perhaps the most prominent contemporary example of Einstein´s legacy is...

2013-03-04 13:22:04

Physicists make first direct measurements of polarization states of light Researchers at the University of Rochester and the University of Ottawa have applied a recently developed technique to directly measure for the first time the polarization states of light. Their work both overcomes some important challenges of Heisenberg's famous Uncertainty Principle and also is applicable to qubits, the building blocks of quantum information theory. They report their results in a paper published...


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...

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