Submitted by JMiszczak on Thu, 23/12/2010 - 11:38.
Jon Cartwright at PhysicsWorld writes: ''Physicists in the US and the UK have found a way to store and read data in nuclear spins using electronic pulses. The breakthrough could help in the development of spintronic systems that process information using spins – and could also find applications in quantum computation.''
Submitted by JMiszczak on Fri, 17/12/2010 - 12:41.
Kate McAlpine at PhysicsWorld writes: ''Since quantum mechanics was first formulated, a string of physicists including Albert Einstein have been uncomfortable with the idea of entanglement – whereby a group of quantum particles have a closer relationship than allowed by classical physics. As a result, some physicists have proposed alternative theories that allow such close relationships without the need for quantum mechanics.
Submitted by JMiszczak on Wed, 15/12/2010 - 19:16.
Chris Lee at ArsTechnics writes: ''Not so long ago, we reported on a paper that purported to blow a hole in quantum key distribution (QKD) systems. Now, researchers at Toshiba have struck back with findings that show that the attack doesn't really work. To which the original authors have replied, "Well, it depends." ''
Submitted by JMiszczak on Wed, 08/12/2010 - 19:07.
Taking a step toward the realization of futuristic quantum technologies, a team of physicists from China and Germany has demonstrated a key element – an entangling gate – of a quantum teleportation scheme proposed more than 10 years ago. The entangling gate serves as a fundamental building block for applications such as long-distance quantum communication and practical quantum computers.
Submitted by JMiszczak on Sun, 28/11/2010 - 09:33.
PicoQuant GmbH and the Department of Physics - Nanooptics of Humboldt University have started a high bit rate quantum random number generator service delivering truly random numbers over the internet. Using the service is free of charge but requires registration.
Submitted by JMiszczak on Mon, 15/11/2010 - 11:40.
Michael Banks writes at Physics World: ''The US is no longer a "colossus of science" according to a new report looking into the country’s scientific output. Written by information-services provider Thomson Reuters, it says that although the US still holds a "commanding" lead in terms of its research impact, its forerunner status is being eroded. The report blames this on a rapid rise in scientific publishing from countries in Asia and Europe.''
Submitted by JMiszczak on Sun, 14/11/2010 - 18:56.
Dr. Olivia Meyer-Streng at IDW writes: ''The ability to control the propagation of light is at the technological heart of today’s telecommunication society. Researchers in the Laboratory of Photonics and Quantum Measurement led by Prof. Tobias J. Kippenberg (now EPFL) have discovered a novel principle to accomplish this, which is based on the interaction of light (photons) with mechanical vibrations (phonons).
Submitted by JMiszczak on Thu, 11/11/2010 - 16:48.
Quantum communication networks are high on Europe's agenda, with particular focus being given to quantum memory or information storage. Meeting the challenge head on to make such information accessible to users is a team of scientists from Denmark who used two 'entangled' light beams to store quantum information. The research study, supported by the EU with a combined funding of almost EUR 16 million, is presented in the journal Nature Physics.