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Researchers Exploit Decay to Create Entanglement of Atomic Systems

Usually, when researchers work with quantum information, they do everything they can to prevent the information from decaying. Now researchers at the Niels Bohr Institute, among others, have flipped things around and are exploiting the decay to create the so-called entanglement of atomic systems, which is the foundation for quantum information processing. The results are published in the scientific journal, Nature.

25 Nov 2013

NIST Experiment Shows How Quantum Computing Can Benefit from Lost Data

Suggesting that quantum computers might benefit from losing some data, physicists at the National Institute of Standards and Technology (NIST) have entangled—linked the quantum properties of—two ions by leaking judiciously chosen information to the environment.

25 Nov 2013

Quantum Cowboy Teaches Physics on 1,000 Acre Farm

On 1,000 acres of verdant grass and dirt trails 35 miles north of Bryan and strewn with some 200 cows and calves, world-renowned Texas A&M University quantum physicist Marlan Scully is cultivating a vision befitting his nickname, "the Quantum Cowboy" -- a farm where he combines cutting-edge laser research with student teaching, from the latest in science to more efficient farming.

22 Nov 2013

Singlet Fission Holds Promise for Improved Solar Cells

Solar cells offer the opportunity to harvest abundant, renewable energy. Although the highest energy light occurs in the ultraviolet and visible spectrum, most solar energy is in the infrared.

18 Nov 2013

Novel Device Leaves Photon Untouched Upon Detection

Light is of fundamental importance. It allows us to see the world around us and record pictures of our environment. It enables communication over long distances through optical fibers. All current methods of detecting light share a common property: absorption and thus destruction of a photon. It has been a long-standing dream to be able to watch individual photons fly by without absorbing them.

18 Nov 2013

Waterloo Quantum Physicists Named Canada Research Chairs

Two scientists from the University of Waterloo have been named Canada Research Chairs by the Government of Canada for their work in quantum physics.

16 Nov 2013

Physicists Successfully Generate Single Color Quantum Light Particles for Quantum Information Applications

Physicists at the University of Basel have been successful in generating photons - the quantum particles of light – with only one color. This is useful for quantum information. The scientists have actively stabilized the wavelength of the photons emitted by a semiconductor thereby neutralizing the charge noise in the semiconductor.

5 Nov 2013

Quasar Light Method for Measuring Cosmic Distances Wins Lundbeck Foundation Research Prize

Darach Watson has been awarded the Lundbeck Foundation Research Prize for Young Scientists for his outstanding and innovative research in astrophysics, where he has developed a groundbreaking method for measuring distances in the cosmos using the light from distant quasars. The result was selected by Physics World as one of the year’s most important breakthroughs in physics.

4 Nov 2013

TU Vienna Sets New World Record for Terahertz Quantum Cascade Laser

Terahertz waves are invisible, but incredibly useful; they can penetrate many materials which are opaque to visible light and they are perfect for detecting a variety of molecules. Terahertz radiation can be produced using tiny quantum cascade lasers, only a few millimetres wide. This special kind of lasers consists of tailor made semiconductor layers on a nanometer scale.

31 Oct 2013

Hofstadter-Harper and Quantum Spin Hall Hamiltonian Implemented Using Neutral Atom Crystal

After more than 40 years of intense research, experimental physicists still seek to explore the rich behaviour of electrons confined to a two-dimensional crystalline structure exposed to large magnetic fields. Now a team of scientists around Prof. Immanuel Bloch (Chair for Experimental Physics at the Ludwig-Maximilians-Universität Munich and Director at MPQ) in collaboration with the theoretical physicist Dr. Belén Paredes (CSIC/UAM Madrid) developed a new experimental method to simulate these systems using a crystal made of neutral atoms and laser light.

30 Oct 2013