Measurement precision beats standard quantum limit

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For physicists, measuring the precise magnitude of a physical quantity is a key to understanding quantum mechanics. However, there is a limit to how precise a measurement can be made, which is governed by quantum mechanical laws.


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All News summaries for April 21, 2008

Argonne scientists use lasers to align molecules

1 hour ago | User rating: not rated yet
Protein crystallographers have only scratched the surface of the human proteins important for drug interactions because of difficulties crystallizing the molecules for synchrotron x-ray diffraction.

Black holes not black after all

May 12, 2008 | User rating: not rated yet
International scientists have used flowing water to simulate a black hole, testing Stephen Hawking's theory that black holes are not black after all.

Possible Mechanism for Enormous Electromechanical Response

May 12, 2008 | User rating: not rated yet
Scientists at the U.S. Department of Energy's Brookhaven National Laboratory and collaborators at Stony Brook University, Johns Hopkins University, and the National Institute of Standards and Technology have ...

Precise Alignment to Quantum Dots

May 12, 2008 | User rating: not rated yet
“Precise lithographic alignment to site-controlled quantum dots is of major importance for numerous nano-photonic, nano-electronic and nano-spintronic devices,” Sven Höfling tells PhysOrg.com.

Quantum computers take step toward practicality with demonstration of new device

May 09, 2008 | User rating: not rated yet
Computers based on the powerful properties of quantum mechanics have the potential to revolutionize information technology and security, but for decades they have remained more theoretical than practical, ...
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