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Researchers Demonstrate First Persistent Current in Ultracold Atomic Gas

Using laser light to stir an ultracold gas of atoms, researchers at the National Institute of Standards and Technology (NIST) and the Joint Quantum Institute (NIST/University of Maryland) have demonstrated the first "persistent" current in an ultracold atomic gas - a frictionless flow of particles.

27 Nov 2007

Australian Scientists Create World's Most Accurate Ruler

In a paper published in Nature today, Griffith Centre for Quantum Dynamics researchers reveal a technique that, for the first time, measures lengths as accurately as the laws of physics allow.

26 Nov 2007

Quantum Optics: From Photons and Atoms to Molecules and Solid State Systems

In the past years the field of quantum optics has begun to expand from its original domain covering basic photon(ic) and atom(ic) systems into the realm of molecular and solid state physics. Theory and experiment have progressed to the point where the traditional boundaries between the different areas have become less pronounced.

19 Nov 2007

New Way to Manipulate Light a Million Times More Efficiently Than Before

Using a special hollow-core photonic crystal fibre, a team at the University of Bath, UK, has opened the door to what could prove to be a new sub-branch of photonics, the science of light guidance and trapping.

17 Nov 2007

New Technique to Slow Down, Stop and Capture Light

Professor Ortwin Hess, his PhD student Kosmas Tsakmakidis of the Advanced Technology Institute and Department of Physics at the University of Surrey and Professor Alan Boardman from Salford University have revealed a technique which may be able to slow down, stop and capture light.

15 Nov 2007

Breakthrough in Making Spins in Quantum Dots Identical

Scientists are closer to developing novel devices for optics-based quantum computing and quantum information processing, as a result of a breakthrough in understanding how to make all the spins in an ensemble of quantum dots identical.

15 Nov 2007

Light Pulses Caught using Photonic Crystal Resonator

A team from Kyoto University has demonstrated a method for dynamically changing the lifetime of a photonic crystal resonator, which in effect can trap a pulse of light inside the system. Susumu Noda and his colleagues showed that the Q factor of their system, a measure of the number of time periods of light after which most of the light has left the system, could be increased by a factor of four from 3,000 to 12,000 within just a few picoseconds.

15 Nov 2007

Thermo Fisher Introduces LDTD Technology in a Strategic Partnership

Thermo Fisher Scientific Inc., the world leader in serving science, announces a strategic partnership with Phytronix Technologies, a Canada-based company, for the use of Laser Diode Thermal Desorption (LDTD) technology.

12 Nov 2007

New Technique Makes Imaging Individual Atoms 100 Times Faster

Using an existing technique in a novel way, Cornell physicist Keith Schwab and colleagues at Cornell and Boston University have made the scanning tunneling microscope (STM) -- which can image individual atoms on a surface -- at least 100 times faster.

12 Nov 2007

Swiss Elections Made History by Using Quantum Cryptography Protection System

Quantum cryptography was used in a real-world application for the first time when the Swiss went to vote in their national elections last week. A quantum key distribution (QKD) system protected the dedicated line that transmitted the ballots to the counting station, guaranteeing the secrecy and security of the data.

31 Oct 2007