Archive | Physics


Mysterious “action at a distance” between liquids may be commonplace

Back in 2010, researchers found that superfluid helium reservoirs stored in separate containers could behave collectively. Now, a new theoretical model reveals that the phenomenon of mysterious “action at a distance” between fluid reservoirs is much more common than previously thought. The original discovery, made by a team from the University at Buffalo and the […]

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Quantum camera takes pic using only entangled photons

Using a new quantum imaging technique, a picture has been captured without the camera detecting the light that was used to illuminate the subject. Instead, the detector relies on entangled photons that have never touched the subject (in this case, a silhouette of a cat). Normally, an image of an object is obtained by sensing […]

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Physicists map quantum to classical collapse

Extracting information from a system as it collapses from a quantum state to a classical state was never considered possible by the original founders of quantum theory, but Berkeley physicists have managed to extract information from a system continuously throughout its change of state, an achievement they say is like monitoring Schrodinger’s cat through the […]

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Algae turn quantum coherence on and off

A team of researchers has discovered how algae that survive in very low levels of light are able to switch on-and-off a quantum phenomenon known as coherence. The function of coherence in the algae remains a mystery, but the researchers think it could help the organisms harvest energy from the Sun much more efficiently. The […]

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Researchers go beyond quantum limit

Scientists are capable of measuring the position of an object with unprecedented accuracy, but the Heisenberg uncertainty principle ultimately places a fundamental limit on such measurements (known as the standard quantum limit). Now, however, Caltech researchers have found a way to filter this quantum background “noise” and make measurements that go beyond the limits imposed […]

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First direct evidence supporting cosmic inflation

Scientists announced today that they have successfully measured a B-mode polarization signal in the Universe’s cosmic microwave background (CMB). The signal, detected using a telescope at the South Pole, represents an important confirmation of the theory of cosmic inflation and provides insights into how the Universe may have behaved in the first fractions of a […]

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Spinning nanoparticles hint at origin of life

Simply making nanoparticles spin coaxes them to arrange themselves into what University of Michigan researchers call “living rotating crystals,” a self-organizing behavior where the crystals take on a life of their own. Researcher Sharon Glotzer and her team discovered the behavior while investigating methods to make nanoparticles self-assemble. They found that when they spun individual […]

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Quasars at opposite ends of the Universe could close a loophole in quantum mechanics

Physicists have proposed an experiment that may close the last major loophole of Bell’s inequality – a 50-year-old theorem that, if violated by experiments, would mean that our Universe is based not on the laws of classical physics, but on the probabilities of quantum mechanics. In 1964, physicist John Bell took on this seeming disparity […]

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Recent discovery of quantum vibrations in brain neurons lends weight to his controversial theory of consciousness, says Sir Roger Penrose

Incorporating the recent discovery of quantum vibrations inside brain neurons, a new assessment of a controversial 20-year-old theory of consciousness presents compelling evidence for the idea that consciousness derives from very fine scale activities inside brain neurons. The new review, by scientific heavyweights Stuart Hameroff and Sir Roger Penrose, appears in the journal Physics of […]

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