Quantum Physics : Science World Report

Jun 20, 2013 11:33 AM EDT

Quantum Network Milestone: Scientists Entangle Light with Optical Atomic Coherence

Scientists may have just reached a quantum network milestone. Using clouds of ultra-cold atoms and a pair of lasers operating at optical wavelengths, they've entangled light with an optical atomic coherence composed of interacting atoms in two different states.

Jun 14, 2013 03:50 PM EDT

Data Highways for Quantum Information

Researchers at the Vienna University of Technology quantum mechanically couple atoms to glass fiber cables. Now, they have shown that their technique enables storage of quantum information over a sufficiently long period of time to realize global quantum networks based on optical fibers.

Jun 12, 2013 02:34 PM EDT

Quantum Entanglement: Spooky Action Put to Order

A property known as «entanglement» is a fundamental characteristic of quantum mechanics. Physicists and mathematicians at ETH Zurich show now how different forms of this phenomenon can be efficiently and systematically classified into categories. The method should help to fully exploit the potenti...

Jun 07, 2013 05:52 PM EDT

Fine-Tuning Emissions From Quantum Dots

Tiny particles of matter called quantum dots, which emit light with exceptionally pure and bright colors, have found a prominent role as biological markers. In addition, they are realizing their potential in computer and television screens, and have promise in solid-state lighting.

Jun 07, 2013 04:28 PM EDT

First Observation of Spin Hall Effect in a Quantum Gas Is Step Toward 'Atomtronics'

A new phenomenon discovered in ultracold atoms of a Bose-Einstein condensate (BEC) could offer new insight into the quantum mechanical world and be a step toward applications in "atomtronics"—the use of ultracold atoms as circuit components.

May 29, 2013 06:34 PM EDT

Is Heisenberg's Uncertainty Relation Wrong? Physicists Measure Multiple Quantum Properties at Once

An important advance in the quantitative understanding and experimental verification of complementarity; arguably the most important foundational principle of quantum mechanics.

May 20, 2013 03:34 PM EDT

Unique Quantum Simulation Device Enables New Experiments

Quantum physicists in Innsbruck conducted experiments using a new device, which is currently considered to be one of the most promising developments in quantum physics: a quantum simulator.

May 09, 2013 10:09 PM EDT

Ultracold Atoms for Quantum Sensors Now Also in Compact Devices

Researchers developed a portable way to produce ultracold atoms for quantum technology and quantum information processing, a scientific breakthrough that was published and featured on the front cover of Nature Nanotechnology.

Apr 29, 2013 04:49 PM EDT

Quantum Phenomenon 'Zero-Point Energy' Lets Molecules Defy Classical Physics

New research shows that movement of the ring-like molecule pyrrole over a metal surface runs counter to the centuries-old laws of 'classical' physics that govern our everyday world.

Jan 18, 2013 04:15 PM EST

Optimized Quantum Teleportation Protocol More 'Fuel Efficient'

Quantum teleportation is possibly becoming more efficient! Mathematicians worked out a paper titled "Generalized Teleportation and Entanglement Recycling", in which they propose a new, more efficient protocol for teleportation which allows for a wide variety of potential applications in quantum phys...

Jan 15, 2013 12:10 PM EST

Quantum Computers: Proteins Assemble Crucial Nanodiamond Array

Biological self-assembly of nanodiamond arrays have been proposed and experimentally implemented for the first time by a team of researchers around Prof. Martin Plenio at Ulm University, Germany.

Dec 21, 2012 08:15 PM EST

New third kind of quantum magnetism proved by MIT scientists

A new kind of magnetism dubbed quantum spin liquid (QSL), until now only predicted by theories but impossible to prove, was now measured for the first time in a special kind of crystal by a team of MIT researchers.