When the researchers apply a force on the soft side of the metamaterial, it easily induces rotations of the squares and diamonds within the structure, but only in the near vicinity of the pressure point, and the effect on the other side is small. Conversely, when they apply the same force on the rigid side, the motion propagates and is amplified throughout the material, with...
Read More
For example, imagine a hockey forward speeding across the ice towards the goal. As the forward approaches, he must dodge the other team's defense and find an opening to shoot the puck past the goalie. The forward sees two openings. Within a split second, neurons in the hockey player's motor cortex fire and encode the muscle commands needed to take both of the two possible...
Read More
even those of us who seem to have two left feet have got rhythm—in our brains. From breathing to walking to chewing, our days are filled with repetitive actions that depend on the rhythmic firing of neurons. Yet the neural circuitry underpinning such seemingly ordinary behaviors is not fully understood
"It's still very difficult to contemplate how large groups of neurons with literally billions if...
Read More
Imagine you are standing in a grocery store buying apple juice. Unfortunately, all of the crates are half empty because other customers have removed individual bottles at random. So you carefully fill your crate bottle by bottle. But wait: The neighboring crate is filled in exactly the opposite way! It has bottles where your crate has gaps. If you could lift these bottles in one...
Read More
Physicists from the Faculty of Physics at the University of Warsaw have developed a holographic atomic memory device capable of generating single photons on demand in groups of several dozen or more. The device, successfully demonstrated in practice, overcomes one of the fundamental obstacles towards the construction of a quantum computer.
Read more at: https://phys.org/news/2017-02-large-groups-photons-demandan-equivalent.html#jCp
When matter changes from solids to liquids to vapors, the changes are called phase transitions. Among the most interesting types are more exotic changes—quantum phase transitions—where the strange properties of quantum mechanics can bring about extraordinary changes in curious ways.
Read more at: https://phys.org/news/2017-01-neutrons-bit-gold-uncover-quantum.html#jCp
"and there are many practitioners in this field of quantum physics who are proposing that the second law doesn't apply to systems that are i
Information based on photons has great advantages; photons interact only very weakly with the environment - unlike electrons, so photons do not lose much energy along the way and can therefore be sent over long distances. Photons are therefore very well suited for carrying and distributing information and a quantum network based on photons will be able to encode much more information than is possible...
Read More
Professor Biercuk highlighted the challenges of making predictions in a quantum world: "Humans routinely employ predictive techniques in our daily experience; for instance, when we play tennis we predict where the ball will end up based on observations of the airborne ball," he said.
Read more at: https://phys.org/news/2017-01-quantum-future-literally.html#jCp
"This works because the rules that govern how the ball will move, like gravity, are regular and...
Read More