News tagged with quantum limit
Finnish team devise nanomechanical microwave amplifier with near least possible noise generation
(PhysOrg.com) -- A team of Finnish physicists has developed a novel way to amplify a microwave signal that unlike other amplifiers, produces noise that is just barely above that which is necessary due to the ...
Dec 15, 2011 |
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The quantum world writ large: Using short optical pulses to study macroscopic quantum behavior
(PhysOrg.com) -- Einstein infamously dismissed quantum entanglement as spooky action at a distance and quantum uncertainty with his quip that God does not play dice with the universe. Aside from revealing his ...
Sep 27, 2011 |
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New fundamental limitation restricts position accuracy of quantum objects
(PhysOrg.com) -- Although the uncertainty principle is probably the most well-known example of a fundamental limitation of measurement precision in quantum mechanics, it is not the only one. In fact, every physical system ...
Mar 28, 2011 |
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Quantum Sensor Developed by LSU Researcher Breaks New Limits
(PhysOrg.com) -- Researchers at Louisiana State University have invented an optical sensor that surpasses a quantum limit to sensitivity previously believed to be unbeatable. The breakthrough has a broad array of applications, ...
Mar 16, 2010 |
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Quantum-limited Measurement Method for Nanosensors
(PhysOrg.com) -- (PhysOrg.com) -- A team of scientists from the Max Planck Institute of Quantum Optics and the Ludwig Maximilians University have succeeded in applying a novel optical method to nano-mechanical ...
Oct 14, 2009 |
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Computers Faster Only for 75 More Years? Physicists determine nature's limit to making faster processors
With the speed of computers so regularly seeing dramatic increases in their processing speed, it seems that it shouldn't be too long before the machines become infinitely fast -- except they can't.
Oct 14, 2009 |
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