A black hole is a region in space with a tremendous gravitational field. It is called black because even light cannot scape from it. In the 70s Professor Hawking predicted that there is black-body radiation emitted from the black hole. The detection of this kind of radiation was almost impossible due to two main factors: first of all the radiation is very delicate, which makes it difficult to observe. Secondly, it is so far away that the distance could probably debilitate the signal.
Of course to prove it in the lab was not feasible, until a group of scientist in Israel had the idea to use ultracold Helium. Some other ideas are also starting to flourish. Will Hawking Radiation be proven in the lab? Click on the image below to know more, and also HERE.
High correlations between particles, or "spooky action at a distance", as Einstein said, is known as an entanglement, and it is a property only occurring in the quantum world. Even if we know that entanglement exists, it is very hard to measure, and this difficulty grows when the number of particles increases. A new protocol to detect entanglement has been proposed. Maybe we are a step closer to a broader awareness of the quantum physics.
Yes, sciencefreak! You can enjoy and learn more about Quantum Physics by playing in your own device some of the games developed by a danish group at Aarhus. The link to the website with all the games is HERE! To learn more about the story behind this fabulous idea click on the image below. Have fun!
One of the weirdness of quantum physics is the so called Superposition Principle, that can be explained in a just a few words at the fact that a quantum mechanical object can be in two states at the same time. Taking the qubit as an analogy, if we think of the classical computational bit of either being 0 or 1, the quantum mechanical counterpart will be a bit able to be 0, 1, or 0 and 1 at the same time. Researchers are now trying to measure how much superposition or coherence, as well as how useful that can be, in a system. A step forward for a better understanding of the quantum world for future practical applications.
For the first time an unwanted effect when trying to manipulate Rb atoms has been discovered. The interested in Rb for cold atoms experiments is well known, not only because it is a hydrogen-like atom but also due to its Rydberg physics. When manipulating these atoms under strong interactions, an anomalous behaviour has been found. The questions is whether could be a drawback for the implementation of a future quantum computer based on Rydberg atoms or not.
Discover more by clicking on the picture below:
When I came across this paper, I really wanted to share it with all of you science freaks.
In my research group we work with Spin Models, that is why I find so interesting the fact that we can consider the 2D Ising Model as the universal model. Moreover, the suggestion to use these models to simulate no only quantum magnetism but other complicated systems, is fascinating.
Just click on the picture below to discover this idea.
More information also HERE.
It could be a perfect environment for a new science fiction movie, but this planet is real and has been recently discovered!