Easing uncertainty
Heisenberg's uncertainty principle, the fundamental impossibility of simultaneously measuring properties such as position and momentum, is at the heart of quantum theory. Physicists at ETH Zurich have now demonstrated an ...
Apr 03, 2018
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Climate sensitivity—reducing the uncertainty of uncertainty
Global warming is a reality – but just how bad will it be? A study published in January 2018 claims to halve the uncertainty around how much our planet's temperature will change in response to rising carbon dioxide (CO2) ...
Quantum speed limits are not actually quantum
Quantum mechanics has fundamental speed limits—upper bounds on the rate at which quantum systems can evolve. However, two groups working independently have published papers showing for the first time that quantum speed ...
Ice-age echoes affect present-day sea level
A new study has, for the first time, cut a clear path through a nettlesome problem: accurately measuring a powerful effect on global sea level that lingers from the last ice age.
Apple, once again, has a bad case of the iPhone jitters (Update)
Apple is making more money than ever, but it still doesn't seem to be enough to keep everyone happy. Not with conspiracy theories swirling around Apple's secret slowdown of older iPhones while a cloud of uncertainty looms ...
Quantum noise reduction method for enhanced precision in atomic clocks
Noise: it affects us all by distracting us. Noise also occurs at the quantum scale and can e.g. interfere with the measurements of atomic fountain clocks or with quantum information processing. This is because at that scale, ...
Stabilization of a wheeled inverted pendulum assistant robot
Rosie, the housekeeper from The Jetsons, has been the archetypal representative of helper robots since she wheeled onto televisions screens in the early 1960s. While Rosie vacuumed and washed dishes without a hint of incoordination, ...
Soft magnetic material characterizations get a harder look
In motors, generators and similar electric machines, the electrical current that powers them generates magnetic fields that magnetize some of the metallic components.
Researcher seeks to tame 'ghost' of uncertainty in complex dynamic systems
We're surrounded by dynamic systems—systems demonstrating behavior changing through time—in engineering, nature, civilization, even our personal lives. Even an ordinary bathtub could be considered a dynamic system with ...
Researchers observe dynamical quantum phase transitions in an interacting many-body system
A team of researchers from several institutions in Germany and Austria has developed a means for directly observing dynamical quantum phase transitions in an interacting many-body system. In their paper published in the journal ...
