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Home / News / Tags / photons
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Building a quantum computer is one of the main efforts currently being made in the fields of information technology, nanotechnology and quantum physics. The reason why so many people want to see the device built is its amazing potential computational power, which could see seemingly unbreakable problems being figured... |
23 November 2009
03:44 GMT |
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About one year ago, a research group made an amazing discovery that turned out to be so important that an entire new field of science was dedicated to it just a few months later. The scientists, from the Rush University Medical Center, in Chicago, found that living cells placed in different cultures tended to synchro... |
20 November 2009
08:32 GMT |
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Scientists at the Cornell University, in the United States, have recently announced the development of a new optical technology, which allows them to use a tiny beam of light in order to move nanostructures. The beam employs as little as one milliwatt of power in order to do this, but it can move structures that are ... |
18 November 2009
06:57 GMT |
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The dual nature of light, as in the fact that it can act like both a particle and a wave, has had physicists puzzled since that was first discovered. Such a duality was bound to lead to some paradoxes, scientists hypothesized at the time, and now their predictions appear to be coming true. Scientists have recently di... |
15 November 2009
04:28 GMT |
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At this point, optical fiber is able to focus beams of light into extremely narrow space. AS light travels through the wire, the latter gets narrower and narrower, until it finally reaches a thickness of only a few hundred nanometers. From that moment on – depending on the wavelength of the light itself –... |
13 November 2009
21:31 GMT |
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The Planetary Society has again announced plans of testing a solar sail prototype, which it hopes to have built in a spacecraft, and then launched by the end of next year. The mission would essentially attempt to harness the power of solar winds for propulsion, a feat that has been advertised for a long time, but tha... |
11 November 2009
01:55 GMT |
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British scientists from the University of Hull have recently developed a new type of hybrid material, which may lead to an entirely new generation of OLED- and LCD-based displays, Technology Review reports. The material contains structures known as electroluminescent liquid crystals, which are apparently able to emit... |
9 November 2009
15:31 GMT |
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Physicists at the Zhejiang University, in China, and the Massachusetts Institute of Technology (MIT), in the US, have recently discovered a reverse shock wave of light forming in a special type of structure, known as a left-handed metamaterial. This is the first time the effect is directly observed in such a specific... |
3 November 2009
17:41 GMT |
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Astronomers using the Very Energetic Radiation Imaging Telescope Array System (VERITAS), in Amado, Arizona, have recently announced that they discovered very high energy (VHE) gamma-ray emissions coming in from the starburst galaxy M82, also known as the Cigar Galaxy. According to the team, the radiations are very po... |
3 November 2009
02:52 GMT |
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Each and every action that we perform, be it a thought or an actual movement of an arm or leg, is done via electrical impulses. These impulses travel through neurons in nerve fibers from head to toe in extremely brief periods of time, a trait that allows us to perform sudden movements, and not experience “lags&... |
28 October 2009
21:11 GMT |
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Black holes are known to be the remnants of massive stars' collapsed cores, which fall under their own weight to an area of intense gravity that is so large, it can even absorb light. Supermassive ones can be found at the core of all large galaxies, but, even then, they cannot be accurately studied because all s... |
21 October 2009
04:57 GMT |
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The main issue plaguing researchers trying to devise quantum computers today is the fact that it's considerably more difficult to entangle electrons than it is to entangle photons. If that became a reality, then experts could finally use superconductor materials as a source of entangled electrons, which could le... |
15 October 2009
03:01 GMT |
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High-speed cameras, used in Hollywood to create breathtaking, special effects, are nothing compared with the ones used in laboratories for imaging rapid interactions between things so small that thousands of them would fit within the width of a human hair. But the number-one prize goes to the Megaframe project, which... |
12 October 2009
10:02 GMT |
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An international team of researchers, comprising scientists from the State University of Pennsylvania, in the US, and the Universidad Autonoma de Madrid (UAM), in Spain, has recently been able to replicate biological structures at the nanoscale. It has been, for instance, capable of recreating the wing of a butterfly... |
9 October 2009
18:51 GMT |
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Digital cameras have moved over the years from being something that only the rich could afford to being a tool of the masses. Prices for the average models can be afforded, and only the top-notch ones remain untouchable for the common people. But experts have been looking for a way to make even cheaper image sensors ... |
8 October 2009
17:41 GMT |
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According to a new research conducted by Swedish and Polish experts, photons used for quantum-data transmissions have strength in numbers. They reveal that the elementary particles, which make up quantum bits, or qubits, the basic units of a quantum computer, are much less likely to trigger the scrambling of transmit... |
6 October 2009
05:47 GMT |
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Experts at the University of Montreal, in Canada, have recently concluded their work on the world's most advanced and sensitive video camera. The team was led by physics PhD student Olivier Daigle, and the first models of the new instrument were produced by Quebec-based Photon etc. The American space agency NASA... |
30 September 2009
04:39 GMT |
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Experts at the University of California in San Diego (UCSD) have recently reaffirmed their role as leading experts in the field of electronics. Last summer, they created an integrated circuit capable of working at 1.5 degrees Kelvin above absolute zero. Those temperatures are colder than most places in the Universe, ... |
28 September 2009
04:05 GMT |
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An international research effort, consisting of scientists from Australia and the United States, has recently beaten the world record in terms of solar-cell efficiency by 0.3 percent, and reached a total conversion rate of 43 percent. Details of the amazing work, which has the ability to completely change the way in ... |
21 September 2009
09:49 GMT |
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In a new study published online in the September 13th issue of the journal Nature Materials, experts at the Eindhoven University of Technology (EUT) and the University of Ulm announced that they had managed to get high-resolution, 3D images of the inside of a polymer solar cell for the first time. Knowing the nanosca... |
14 September 2009
14:21 GMT |
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A new business partnership between Siemens IT Solutions and Services, in the Netherlands, and id Quantique, from Geneva, Switzerland, promises to bring the goal of accessible quantum cryptography one step closer to general use by the masses, officials from the two companies have announced recently, according to Techn... |
28 August 2009
06:36 GMT |
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Scientists at the National Institute of Standards and Technology (NIST) have recently developed a new method of detecting near-infrared light, an achievement that could have significant repercussions for research fields ranging from quantum communications to astronomy and forensics. In the future, the new, highly sen... |
27 August 2009
20:41 GMT |
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Black holes, once highly misunderstood formations, have over the years captured the imagination of astronomers and film producers alike, and have been prominently featured in films and in literature. In spite of the high levels of attention they were given, there are still a great many things that remain unknown abou... |
22 August 2009
06:31 GMT |
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Semiconductors have been the base for modern-day electronics since the first processors appeared, but, for a long time, experts have been trying to make them into structures that not only conduct electricity, but also have their own unique functions. Inspiration for this was drawn from magnets, which, for instance, p... |
21 August 2009
05:21 GMT |
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Out of all the renewable sources of energy that could be tapped to create electricity, solar radiation is now, by far, the most favored. Although some may argue that geothermal energy is truly endless, the fact is that billions of dollars are currently being poured into research related to creating more efficient and... |
18 August 2009
02:42 GMT |
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The Fermi telescope has recently brought a new ray of hope into the search of dark matter, as new observation results coincided directly with previous analyses of the elusive stuff. Last year, the observatory combined its data with that obtained by the PAMELA (Payload for Antimatter Matter Exploration and Light-nucle... |
27 July 2009
03:12 GMT |
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A new design for growing optical semiconductors, created by experts at the US Department of Energy's (DOE) Lawrence Berkeley National Laboratory (LBNL) and the University of California in Berkeley (UCB), will make efficient, low-coast, and flexible solar cells and panels a reality in the future. In the new proce... |
10 July 2009
04:22 GMT |
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As an essential part of the United States' future energy security strategy, solar cells are now the object of a large-scale investigation, conducted by experts at the US Department of Energy's (DOE) Savannah River National Laboratory (SRNL) facility. The goal of the new study is to discover special coatings... |
26 June 2009
16:01 GMT |
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It's widely known that the pixels inside a digital camera are nothing but a complex light sensor, which is able to decode the wavelengths of visible light that hits them, and to convert them into electrical signals, in a process roughly similar to what happens inside the human eye. However, since the digital cam... |
20 June 2009
05:51 GMT |
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A team of chemistry experts at the University of Florida have finally managed to put together a device that is able to convert sunlight directly into motion, though admittedly only at the nanoscale. The new “molecular nanomotor” is entirely photon-driven, and operates solely on the basis of the particles ... |
5 June 2009
06:16 GMT |
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In 2003, after unsuccessful attempts at explaining dark energy through other means, a group of astrophysicists proposed the “chameleon” particle model to explain the hypothetical form of energy. Basically, what the model stated at the time was that this class of particles was able to change its mass on it... |
30 May 2009
02:57 GMT |
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The late UC Santa Cruz scientist Donald Coyne and Almaden Research Center expert D. C. Cheng proposed some time ago the hypothesis that all particles in existence were nothing more than mini-black holes. While disregarded at the time, the idea has gained some support in the academic community over the past years, wit... |
18 May 2009
10:19 GMT |
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Bristol University researchers, working in collaboration with colleagues from Japan, have managed to create an 'entanglement' filter so efficient that it can analyze two particles of light (called photons), and determine if they have the same polarization. If they do, they are allowed to go through, because... |
23 January 2009
09:47 GMT |
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Electrons are subatomic elementary particles bearing the negative electric charge inside the atom. In empty space, the motion of the electrons is largely dependent on the presence of electrical and magnetic fields, but inside matter, the way they move is directly related to the atomic arrangement of the crystal, mean... |
28 July 2008
06:53 GMT |
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Flash tubes are electric glow discharge lamps able to produce high intensity, incoherent, full white light spectrum bursts for small amounts of time. Flash tubes are generally used as high intensity light sources in photographic cameras, warning lights on emergency vehicles and anti-collision beacons and even as ligh... |
25 April 2008
08:51 GMT |
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In an already random quantum world, parasite signals could spell disaster for quantum information systems. Take the example of the quantum computers. Even the slightest noise signal could bring it to a complete halt. However, parasite signals may not be as bad as previously thought, according to Seth Lloyd from the M... |
25 March 2008
07:54 GMT |
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Black holes have such extreme gravitational fields that anything falling beyond the event horizon is ultimately destined to hit the point-like singularity, where it will probably remain forever. Believe it or not, but stable orbits around black holes are possible. Just because an object has extreme gravitational fiel... |
15 January 2008
04:33 GMT |
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IBM has developed a technology that, if proven successful, would bring the world one step closer to the most unbelievable SF predictions. If electric current was a breakthrough, how would you consider substituting it with... light? The new technology is alleged to allow different CPU cores exchange signals through li... |
6 December 2007
04:28 GMT |
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By manipulating a few photons, a team of scientists from Griffith University Center for Quantum Dynamics, has managed to measure a difference in length less than one ten thousandth of a width of a human hair. The principle consists of sending a single photon through the sample which needs to be measured, which will a... |
28 November 2007
10:45 GMT |
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Heavy atomic nuclei fuse together when they collide and fuse rather repulsing each other and flying apart. This is due to the motion of the internal particles that form the nucleus, as a result of an excited state of the nuclei. By following the models to describe the interactions that take place between two nuclei w... |
14 November 2007
08:57 GMT |
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Not only the observable universe is not heavy enough to explain its current configuration, but calculations show that the previously thought mass is actually smaller by 10 to 20 percent, which brings even more questions into discussion. The subject involving the mass of the observable universe is one of the hottest t... |
5 November 2007
03:50 GMT |
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The building block of quantum computers is the qubit, a unit of quantum information that can be made up of either atoms or photons. Atoms have a long coherence time, so they're used as "stationary" qubits, the nodes of the network, while photons are the "flying" cubits, the quantum channels connecting the nodes... |
12 July 2007
11:06 GMT |
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In 1925, Albert Einstein predicted the existence of the atom laser, a completely different type of laser, but until now, no one could actually build one, so it was considered almost a practical impossibility. For the first time, a team of Italian scientists managed to create such a device.The word Laser is an acrony... |
7 July 2007
03:46 GMT |
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It is widely believed that if large-scale quantum computers can be built, they will be able to solve certain problems exponentially faster than any classical computer. Finding a way to build such a computer that works more efficiently than a classical computer has been the holy grail of quantum information processin... |
27 June 2007
08:23 GMT |
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It is widely believed that if large-scale quantum computers can be built, they will be able to solve certain problems exponentially faster than any classical computer. Finding a way to build such a computer that works more efficiently than a classical computer has been the holy grail of quantum information processin... |
19 April 2007
06:07 GMT |
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