Physicists have devised an experiment that could reveal the precise workings of Einstein’s “spooky action at a distance.” The results, say the scientists, would show that either faster-than-light communication is possible, or, that the Universe is fundamentally nonlocal, in the sense that every bit of the Universe is connected to every other bit. The proposal […]
The development of clean solar power may hinge on scientists being able to unravel the mysteries of photosynthesis, the process by which green plants convert sunlight into electrochemical energy. To this end, US researchers have recorded the first observation and characterization of quantum entanglement in photosynthesis. Previous experiments led by Berkeley Lab’s Graham Fleming (right […]
California Institute of Technology scientists have demonstrated how entanglement in the form of beams of light simultaneously propagating along four distinct paths can be detected with a surprisingly small number of measurements. Explaining their work in Science, H. Jeff Kimble, professor of physics at Caltech, and his colleagues show that quantum uncertainty relations can be […]
Using twin light beams and a technique known as four-wave mixing, researchers at the Joint Quantum Institute (JQI) and the University of Maryland have produced “quantum images,” pairs of information-rich visual patterns whose features are entangled. Entanglement, or what Einstein referred to as “spooky action at a distance,” means that changes in one image are […]
In a demonstration of just how weird the quantum world is, scientists at the National Institute of Standards and Technology (NIST) have manipulated six atoms into spinning together in two opposite directions at the same time. This so-called Schrödinger “cat” state was achieved by entangling six beryllium ions (charged atoms) so that their nuclei were […]
Scientists at the Max Planck Institute report that they were able to cool single rubidium atoms and “store” them for 17 seconds. The researchers, writing in Nature, said this was by far the longest storage time ever achieved in a strongly coupled resonator system. The ability to control single atoms in this way is a […]
