University of Miami researchers have found that crossing a quantum phase transition at just-the-right speed generates the richest, most complex light-matter entanglement – a characteristic evident in our Universe. Such structure resembles “defects” in an otherwise smooth and empty space. The findings are published in Physical Review A, the American Physical Society’s main journal. “Our […]
A team including theoretical physicists from the National Institute of Standards and Technology (NIST) has taken a step toward building objects out of photons, and the findings hint that weightless particles of light can be joined into a sort of “molecule” with its own peculiar force. In a paper forthcoming in Physical Review Letters, the […]
A new paper to be published in Physical Review Letters has made a significant step toward unifying general relativity and quantum mechanics by explaining how spacetime emerges from quantum entanglement. The international collaboration of physicists and mathematicians who authored the paper hope it will prove to be a first step toward the long sought Theory […]
Quantum mechanics tells us that light can behave simultaneously as a particle or a wave, but it’s only possible to see one of these attributes at any given moment. Even though a variety of experiments have successfully observed both behaviors of light, they have never been able to observe both at the same time. Now, […]
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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
