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Quantum Computers And Tossing A Coin In The Microcosm

Professor Dieter Meschede's group has been working on the development of so-called quantum computers now for many years. With the 'quantum walk' the team has now achieved a further seminal step on this path. 'With the effect we have demonstrated, entirely new algorithms can be implemented,' Artur Widera explains.

9 Jul 2009

Miniaturized Lasers Emit Quantum Light

For more than 100 years it has been known that light comes in small packages, the so-called photons. The discovery of this quantization of the light field has opened up a new field of physics - quantum optics.

9 Jul 2009

Viable Way to Manipulate a Single "Bit" in a Quantum Processor

Physicists at the National Institute of Standards and Technology (NIST) have overcome a hurdle in quantum computer development, having devised* a viable way to manipulate a single "bit" in a quantum processor without disturbing the information stored in its neighbors.

6 Jul 2009

Imperial Researchers Win Top Awards

Four researchers from Imperial's Department of Physics have been honoured in the Institute of Physics' annual awards announced this week - more than at any other UK university.

3 Jul 2009

Working Towards an Optical Integrated Circuit

ETH Zurich researchers have successfully created an optical transistor from a single molecule. This has brought them one step closer to an optical computer.

2 Jul 2009

Using Laser Beams Create Ultra-High-Speed "Temporal Lenses" Capable Of Making "Movies" Of Molecular Processes

Finding a way to observe and record the behavior of matter at the molecular level has long been one of the holy grails among physicists. That ability could open the door to a wide range of applications in ultrafast elect...

28 Jun 2009

Quantum Bit Memory Lengthen by 1,000 times using Lasers

The scientists, including the University of Michigan's Duncan Steel, used lasers to elicit a previously undiscovered natural feedback reaction that stabilizes the quantum dot's magnetic field, lengthening the stable existence of the quantum bit by several orders of magnitude, or more than 1,000 times.

24 Jun 2009

Putting a Freeze on Oscillator Vibrations

University of Oregon physicists have successfully landed a one-two punch on a tiny glass sphere, refrigerating it in liquid helium and then dosing its perimeter with a laser beam, to bring its naturally occurring mechanical vibrations to a near standstill.

17 Jun 2009

Scientists Break Light Modulation Speed Record

Researchers have constructed a light-emitting transistor that has set a new record with a signal-processing modulation speed of 4.3 gigahertz, breaking the previous record of 1.7 gigahertz held by a light-emitting diode.

15 Jun 2009

Zecotek Photonics Announces Market Response to New Continuous Wave Narrow-Band Ti: Sapphire Laser

Zecotek Photonics Inc. (TSX VENTURE:ZMS)(FRANKFURT:W1I), a developer of leading-edge photonics technologies for medical, industrial and scientific markets, today announced that the market response to its new Continuous Wave Narrow-Band Ti: Sapphire Laser, the Tisarius-D-scan narrow-line laser, endorses Zecotek's growing reputation as a provider of leading edge photonic research tools.

15 Jun 2009