Zoom in / (lr) Quantum gas first appears as an elongated rod. As it rotates, it becomes a spiral, then breaks into dots, each of which is a spiral mass. Between the points, small vortices appear in a network that repeats regularly.-
MIT / Alam
Physicists at the Massachusetts Institute of Technology have succeeded in creating a ‘quantum tornado’ in an extremely cold atomic cloud, according to last paper Published in Nature magazine. This is the first direct, In place Documented how rapidly rotating quantum gases evolved, and according to the authors, the process is similar to how the effects of Earth’s rotation can give rise to large-scale weather patterns.
MIT scientists are interested in studying the so-called Quantum Hall Liquid. First discovered in the 1980s, quantum Hall fluids consist of a cloud of electrons floating in a magnetic field. In the classical system, electrons repel each other and form crystals. But in a quantum Hall fluid, electrons mimic the behavior of their neighbors – evidence of quantum correlation.
“People have discovered all kinds of amazing properties, and the reason is that, in a magnetic field, electrons (classically) freeze in place — all their kinetic energy is turned off, and all that’s left is pure interaction.” Co-author Richard Fletcher said:, a physicist at the Massachusetts Institute of Technology. “So, this whole world appeared. But it is very difficult to notice and understand.”
So Fletcher and his colleagues thought they might be able to simulate this unusual electron behavior using a very cold cloud of quantum gas. known as Bose-Einstein Capacitors (BEC)These gases are named in honor of Albert Einstein and the Indian physicist Satyendra Bose. In the 1920s, Bose and Einstein predicted the possibility that the wave nature of atoms would allow propagation and interference if they were sufficiently grouped together.
At normal temperatures, the atoms act like billiard balls and bounce off each other. Lowering the temperature reduces the speed. If the temperature dropped low enough (a millionth of a degree above absolute zero) and the atoms were packed dense enough, the different waves of matter would be able to “feel” each other and coordinate themselves as if they were “big meta-atoms”. “.