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Last updated on April 18, 2014 at 1:21 EDT
New Light Lattice Technique Could Advance Quantum Computing

New Light Lattice Technique Could Advance Quantum Computing

redOrbit Staff & Wire Reports - Your Universe Online Scientists at MIT and Harvard University have developed a light lattice that traps atoms, a technique they say could aid in the creation of powerful quantum computing systems. The...

Latest Quantum electrodynamics Stories

Quantum Photon Properties Revealed In Another Particle, The Plasmon
2014-04-04 15:46:00

Jessica Stoller-Conrad, California Institute of Technology For years, researchers have been interested in developing quantum computers—the theoretical next generation of technology that will outperform conventional computers. Instead of holding data in bits, the digital units used by computers today, quantum computers store information in units called "qubits." One approach for computing with qubits relies on the creation of two single photons that interfere with one another in a device...

Researchers Find Clear Evidence For Coherent Phonons In Superlattices
2014-02-06 13:20:27

Berkeley Lab We all learn in high school science about the dual nature of light – that it exists as both waves and quantum particles called photons. It is this duality of light that enables the coherent transport of photons in lasers. Sound at the atomic-scale has the same dual nature, existing as both waves and quasi-particles known as phonons. Does this duality allow for phonon-based lasers? Some theorists say yes, but the point has been argued for years. Recently a large...

2013-12-19 12:05:09

This work was recently published in Physical Review Letters In contrast to its apparent simplicity (that brought Einstein his Nobel Prize), the photoelectric effect, when an electron is knocked out from its parent atom by a photon, is quite complicated to analyze in general, especially when the atom contains a large number of electrons. Like the many-body problem in classical mechanics, the quantum many-body problem is very difficult to conceptualize and remains a serious challenge for...

2013-12-10 08:36:23

-- Originally predicted in the 1920s by Satyendranath Bose and Albert Einstein, applications could include energy-efficient lasers and optical switches, critical components for future computer systems processing Big Data ZURICH, Dec. 10, 2013 /PRNewswire/ -- For the first time, scientists at IBM Research (NYSE: IBM) have demonstrated a complex quantum mechanical phenomenon known as Bose-Einstein condensation (BEC), using a luminescent polymer (plastic) similar to the materials in...

Wormholes Driving Quantum Entanglement
2013-12-04 15:25:47

John P. Millis, PhD for redOrbit.com - Your Universe Online One of the strangest consequences of quantum theory, is what happens when elementary particles are created in pairs. These individual charges become entangled with their counterparts. The result is that interactions with one of these particles creates direct consequences for the other, even if the other particle is on the other side of the Universe. The simplest example of this is when an electron and positron are created when...

Research Quality X-rays Could Have Widespread Applications
2013-11-25 08:27:00

University of Nebraska-Lincoln Using a compact but powerful laser, a research team at the University of Nebraska-Lincoln has developed a new way to generate synchrotron X-rays. Although the high quality of synchrotron X-rays make them ideal for research ranging from the structure of matter to advanced medical images, access to the technology has been limited until now. Most traditional synchrotron X-ray devices are gigantic and costly, available only at a few sites around the world....

International Research Team Shows Distant Artificial Atoms Cooperate By Sharing Light
2013-11-14 15:52:07

University of Calgary Work is expected to have future applications in advanced quantum devices An international team of scientists has shown for the first time that atoms can work collectively rather than independently of each other to share light. Quantum physicists have long discussed such an effect, but it has not been seen before in an experiment. The team included scientists from ETH Zürich (a leading university in Switzerland) who performed the experiment and theoretical...

Quantum Reality Is More Complex Than Previously Thought
2013-10-28 15:44:43

Faculty of Physics University of Warsaw Imagine you order a delivery of several glass vases in different colors. Each vase is sent as a separate parcel. What would you think of the courier if the parcels arrive apparently undamaged, yet when you open them, it turns out that all the red vases are intact and all the green ones are smashed to pieces? Physicists from the University of Warsaw and the Gdansk University of Technology have demonstrated that when quantum information is transmitted,...

Living On The Edge
2013-10-21 12:28:24

Joint Quantum Institute Topology -- the understanding of how things are connected -- remains abstract, even with the popular example of doughnuts and coffee cups. This concept, esoteric as it appears, is also neat because it is the basis for creating ultrastable quantum "playgrounds."  In topological systems, certain quantum behaviors can be carefully probed and even harnessed for all kinds of practical applications—from metrology to electronics. Topological insulators, for instance,...

Physics World Selects Top Physics Discoveries
2013-10-04 04:29:51

redOrbit Staff & Wire Reports - Your Universe Online In celebration of the publication’s 25th anniversary, Physics World has selected the five most important physics-related discoveries of the past quarter-century, as well as five recent breakthroughs with the potential to change the world. Physics World, which is the member magazine of the Institute of Physics (IOP), selected quantum teleportation, the creation of the first Bose-Einstein condensate (BEC), the acceleration of the...