Leading mathematician, professor Israel Gelfand dies in NJ at age 96October 8th, 2009 Prominent mathematician Irving Gelfand dies in NJNEWARK, N.J. — A Russian immigrant who was considered one of the world's top mathematicians has died in New Jersey.
Combining 6 photons together results in highly robust quantum informationOctober 6th, 2009 WASHINGTON - In a new research, a team of physicists in Sweden and Poland has found that combining 6 photons together can result in highly robust qubits, or quantum information. Exploiting quantum mechanics for transmitting information is a tantalizing possibility because it promises secure, high-speed communications.
Storing light pulses can boost quantum computing furtherSeptember 11th, 2009 SYDNEY - A new way of storing and 'echoing' pulses of light allows bursts of laser to work as a flexible optical memory and potentially assist in extending the range of quantum information systems. A team at the ARC Centre of Excellence in Quantum-Atom Optics has demonstrated how photon echoes can be used to create a quantum memory device - meaning that pulses of light can be captured, stored and then released on demand.
Scientists detect 'fingerprint' of high-temp superconductivity above transition temperatureAugust 28th, 2009 WASHINGTON - A team of US and Japanese scientists has shown for the first time that the spectroscopic "fingerprint" of high-temperature superconductivity remains intact well above the super chilly temperatures at which these materials carry current with no resistance. This confirms that certain conditions necessary for superconductivity exist at the warmer temperatures that would make these materials practical for energy-saving applications - if scientists can figure out how to get the current flowing.
Einstein's theory of general relativity can well be rewritten now!August 25th, 2009 WASHINGTON - Scientists at Texas A and M University in the US have developed a controversial new model of quantum gravity, which might reproduce Albert Einstein's theory of general relativity. The theory, which Einstein developed in the early 20th century, says that matter curves spacetime, and it is this curvature which deflects massive bodies - an effect that we interpret as the influence of gravity.
Scientists propose new way to reproduce a black hole in the labAugust 22nd, 2009 WASHINGTON - In a new research, a team of scientists at Dartmouth university has proposed a new way of creating a reproduction black hole in the laboratory on a much-tinier scale than their celestial counterparts. The new method to create a tiny quantum sized black hole would allow researchers to better understand what physicist Stephen Hawking proposed more than 35 years ago: black holes are not totally void of activity; they emit photons, which is now known as Hawking radiation.
'Big Bang Machine' fizzling out because of faulty magnetsAugust 4th, 2009 WASHINGTON - The Large Hadron Collider (LHC), or the 'Big Bang Machine', as it is popularly called, is fizzling out, as many of the magnets meant to whiz subatomic particles around the 17-mile underground machine outside Geneva have mysteriously lost their ability to operate at high energies. According to a report in New York Times, after 15 years and 9 billion dollars, and a showy "switch-on" ceremony last September, the LHC, the giant particle accelerator outside Geneva, has to yet collide any particles at all, thanks to thousands of bad electrical connections.
Scientists build largest ever quantum key distribution networkJuly 2nd, 2009 WASHINGTON - Researchers from across Europe have united to build the largest quantum key distribution (QKD) network ever built. The efforts of 41 research and industrial organisations were realised as secure, quantum encrypted information was sent over an eight node, mesh network.
Thinnest superconducting metal layer created by physicistsJune 9th, 2009 WASHINGTON - Physicists at the University of Texas at Austin, US, have created a superconducting sheet of lead only two atoms thick, the thinnest superconducting metal layer ever created. Superconductors are unique because they can maintain an electrical current indefinitely with no power source.
US physicists create thinnest superconducting metalJune 8th, 2009 WASHINGTON - A superconducting metal sheet with just two atoms thick has been developed by physicists at the University of Texas in Austin. The university said in a statement Monday that it was the thinnest superconducting metal layer ever created.
Scientists achieve breakthrough in quantum control of lightMay 31st, 2009 WASHINGTON - Researchers at UC Santa Barbara have demonstrated a breakthrough in the quantum control of photons, the energy quanta of light, which is a significant result in quantum computation, and could eventually have implications in banking, drug design, and other applications. UCSB physics researchers Max Hofheinz, John Martinis, and Andrew Cleland used a superconducting electronic circuit known as a Josephson phase qubit to prepare highly unusual quantum states using microwave-frequency photons.
'Spooky action' to distinguish between two similar quantum devicesApril 28th, 2009 WASHINGTON - Physicists are using the phenomenon dubbed as 'spooky action' to distinguish between two similar quantum devices. 'Quantum ghosts' are far distant particles that can somehow 'talk' to each other, a theory put forward by famous scientist Albert Einstein, who called it 'spooky action at a distance'.
Scientists put a new spin on electronsApril 16th, 2009 WASHINGTON - In the first demonstration of its kind, researchers at the University of British Columbia have controlled the spin of electrons using a ballistic technique. For controlling the spin of electrons, the team bounced electrons through a microscopic channel of precisely constructed, two-dimensional layer of semiconductor.
Squeezing light out of quantum dots may lead to advanced laser technologyApril 3rd, 2009 WASHINGTON - Researchers at McGill University, Canada, have successfully amplified light with so-called "colloidal quantum dots," a technology that could lead to forward leaps in lasers, telecom and optical computing. Over the last 15 years, repeated quantum dot research efforts failed to deliver on expected improvements in amplification, and many researchers started to believe that an unknown, but insurmountable law of physics was blocking their path.
Carbon nanotubes may replace metals in electronic applicationsMarch 21st, 2009 WASHINGTON - Scientists at the University at Buffalo Single Walled Carbon Nanotubes (SWCNTs), which are thousands of times stronger than metals, may one day replace metals in millions of electronic applications. Professor Cemal Basaran, the director of the Electronics Packaging Lab in UB's School of Engineering and Applied Sciences, says that the four years of quantum mechanics calculations performed by him and his doctoral student Tarek Ragab have proved that higher current density in carbon nanotubes does not lead to electromigration and thermomigration.
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