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single atoms News
One Step Closer to a Quantum Internet
GARCHING, Germany, April 11, 2012 — Communications networks are vital for our day-to-day lives, and now the first prototype of a quantum one has been developed based on interfaces between single atoms and photons. For a quantum network to be useful, the exchange of quantum information must be reversible. This is difficult because quantum information is very fragile, and the no-cloning theorem prevents the copying of an arbitrary known quantum state. A breakthrough in solving this problem has been achieved by a group led by...
Squeezed Light From Single Atoms
GARCHING, Germany, July 11, 2011 — Researchers have shown that an atom interacting with light inside a cavity can alter the wavelike properties of the light, reducing its amplitude or phase fluctuations below the level allowed for classical electromagnetic radiation. The team,...
A Quantum Pen for Single Atoms
MUNICH, Germany, March 21, 2011 — The ability to observe and control single atoms individually in a lattice of light, to change their spin states and to arrange them in arbitrary patterns has been demonstrated – a discovery that scientists say will advance quantum information...
Lasers Pin Atoms in Order
INNSBRUCK, Austria, July 29, 2010 — A fundamental physical phenomena, whereby an arbitrarily weak perturbation causes atoms to build an organized structure from an initially unorganized one, has been demonstrated for the first time. Physicists can observe quantum mechanical phase...
Cavity-Cooling Technique Cools Single Atoms
Apr 1, 2004 — At Max Planck Institut für Quantenoptik in Garching, Germany, researchers have developed an optical means of cooling single atoms that is at least five times faster than current techniques. Moreover, the approach, which they reported in the March 4...
(5 results found)
May 2024
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