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entanglement News
Surprising Quantum Source Yields Info Advantage
SINGAPORE, Aug. 13, 2012 — Quantum entanglement may not always be necessary to run quantum computers, new research suggests. Moreover, technologies discovered over the past few years can gain a quantum advantage without entanglement.
Atoms Signal Their Entanglement
MUNICH, July 6, 2012 — For the first time, two atoms 20 meters apart have signaled their entanglement, a significant step forward for the study of quantum entanglement and the development of practical applications such as quantum computing and communications networks.
Efficient and Tunable Entanglement Method Developed
INNSBRUCK, Austria, May 25 — To construct a viable quantum network, individual computers will need a way to reliably transmit information to each other. This will require an understanding of how light and matter interact at a quantum level, an understanding that is now much...
Uncertainty in Quantum Measurements Reduced
ATLANTA, March 5, 2012 — In the weird realm of quantum physics, it is not possible to accurately specify the momentum of an object and its exact position. For decades scientists have been able to cheat this limitation through a process called “squeezing.” Now that process...
Record Set for Cesium Atom Entanglement
COPENHAGEN, Denmark, Aug. 22, 2011 — A record for maintaining the entanglement of the spins of two gas clouds of cesium atoms for up to an hour has been set by researchers from Niels Bohr Institute (NBI) at the University of Copenhagen. Entanglement, a key component in quantum...
Ignacio Cirac Wins Catalan Culture Award
GARCHING, Germany, April 23, 2010 — Professor Ignacio Cirac, director at the Max Planck Institute of Quantum Optics and leader of the Theory Division, has been honored with the National Culture Award from Catalonia (Premi Nacional de Pensament i Cultura Científica). Born in the...
Viruses Probed for Quantum Behavior
GARCHING, Germany, March 16, 2010 – Typically, quantum mechanics studies the behavior of energy and matter at the atomic scale, but a German-Spanish research group has begun looking for ways to detect quantum pr...
Quantum Computing Circuit Created
MADISON, Wis., March 2, 2010 – In a move that may help quantum computing become a reality, physicists have created an atomic circuit by exerting delicate control over a pair of atoms within a mere seven-millionths-of-a-second window of opportunity. Quantum computing...
Quantum Signatures of Chaos
TUCSON, Ariz., Oct. 9, 2009 – No one has produced experimental evidence that chaos occurs in the quantum world – the world of photons, atoms, molecules and their building blocks – until now. In a series of experiments, professor Poul Jessen and a group at the University of...
4 Photons Controlled on Chip
BRISTOL, UK, June 9, 2009 – A team of physicists and engineers at the University of Bristol Centre for Quantum Photonics has demonstrated the ultraprecise manipulation skills needed to make a major advance toward quantum technologies by precisely controlling four photons on a...
'Squeezed Light' Record Set
HANOVER, Germany, Jan. 29, 2008 -- An extremely high-quality green laser beam has allowed a record number of photons to be placed in a specific order for use in gravitational wave detectors. Ordering the photons reduced fluctuations in the intensity of the light by 90 percent. This...
Physicists Get a Grip on a Single Electron's Spin
DELFT, Netherlands, Aug. 28, 2006 -- For the first time, researchers said they have succeeded in controlling the spin of a single electron in a nanostructure. The achievement is a step toward using the electron's spin as a quantum bit, the basis for constructing a still-theoretical...
Ultrafast Laser Creates Spin-Entangled Electrons
Apr 1, 2003 — A research team at the University of Michigan in Ann Arbor and the University of Notre Dame in Indiana has reported the entanglement of three electrons in a CdTe quantum well using ultrafast laser pulses. The work, which was published in the March...
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