Technology

How the universe and its mirror versions are different

Kitty can’t digest exposed glass of milk. Worse, if it contains any of the opposite bacteria, her immune system and antibiotics will not be suitable for fighting. For this reason, a group of famous scientists have recently warned that if they escape the lab, they can escape the defense mechanisms of conventional life forms.

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Continuing along the rabbit hole, we see traces of chirality all the way to the basic particles.

Pasteur’s work on molecules depends on previous discoveries by Augustin-Jean Fresnel, who realized in 1822 that different quartz prisms could rotate the electric field of Light to one of two directions, i.e., direction or counterclockwise. If each light can leave a flue diameter in its wake, the right-hand smoke screw will appear from one prism and the other left-hand screw.

Today, physicists believe that chirality is the fundamental property of all fundamental particles, just like charge or mass. Particles without mass always travel at the speed of light, and they also carry an intrinsic angular momentum, as if they rotate like the top. If the particles fly in the direction of the thumb, their rotation is in the direction of the curling fingers – right hand or left hand.

The situation is even more complicated for huge particles such as electrons and quarks. Because the huge particles travel slowly, a fast observer can go beyond it and effectively reverse the direction of their movement, thereby changing its obvious method. Therefore, when describing the chirality of large quantities of particles, physicists usually refer to mathematical descriptions of the quantum properties of particles. When you rotate a particle, its quantum wave function moves left or right according to its chirality.

Almost every elementary particle has a twin passing through the lens. The negatively charged left-hand electrical is reflected by the negatively charged right-hand particles.

In Observing the World of Glass, Alice finds all the logic comes to mind: people run to stay where they are, and they celebrate “unbirthdays” on all days when they are not born. Similarly, our universe is different from its mirror image. Weak force – the force that causes radioactive decay – only left-hand particles can feel it. This means that some particles will rot in the normal world, and the counterparts in the mirror will not.

Also, there seems to be a particle that doesn’t appear in the mirror at all. Neutrinos are only observed in the form of left-handed. Particle physicists are studying whether the right-hand neutrinos exist or the mirror image of the neutrinos is just the same, which can help explain why the universe contains something instead of nothing.

We can understand our world by staring into the mirror. Please be careful not to drink milk.


ability Reprinted under the permission of Quanta Magazine, an editorially independent publication Simmons Foundation Its mission is to enhance public understanding of science by covering research developments and trends in mathematics and physics and life sciences.

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