Some physicists believe that there are unspecified things in the universe. Rather, most physicists believe that nature itself is not certain about it, and on top of them is Werner Heisenberg who developed the “principle of uncertainty” that goes to the impossibility of knowing all the properties of a particle at one time. If the position of the particle is known, for example, why Learn its speed with an error proportional to the accuracy of the position measurement.
Heisenberg adopted his principle to explain a phenomenon in the double-slit experiment, which is an experiment in which quantum particles are projected onto a corresponding plate, through two slits in a middle plate, without any certainty of which slit each particle passes through (its position). Particle distribution on the flap.
If a device is placed to see which slit the whole particle has passed through, the interference pattern is removed. This is what Heisenberg explained with his principle, saying that knowing the particle’s position destabilizes its velocity, destabilizes its position on the opposite plate, so that there are no ripples of interference.
But physicists devised a positioning device that seemed to not affect the velocity of velocity, that random effect, so they concluded that it was not Heisenberg’s principle that explained the disappearance of the interference pattern, but rather another mechanism. Even an international team recently published a research paper saying that this conclusion was an acceleration, and that they conducted an experiment that showed that speed is affected exactly as Heisenberg predicted.
“The velocity acceleration does not occur while a particle passes through the measuring device, but rather after it passes the two slits a relatively large distance … The reason for this is that quantum particles are not just particles, but they are,” said Howard Weizmann, director of the Center for Quantum Dynamics at Griffith University, and one of the researchers. Particles and waves at the same time. ”
The team used an approach proposed by Weizmann in 2007, and compared the velocities over time, both when the measuring device was present and when it was not present, and in this way determined the change in velocity as a result of the measurement. He discovered that the effect of velocity with the position measurement continued even after the particles had passed the same measuring device, at five meters.
This not only supports Heisenberg’s principle, but also reminds one of the consequences of haste, and warns scholars not to judge any principle until after carefully considering all its possibilities and theoretical formulations.
The Uncertainty Principle
And as you know the uncertainty principle is certainly one of the most famous aspects of quantum mechanics. It has often been regarded as the most distinctive feature in which quantum mechanics differs from classical theories of the physical world. Roughly speaking, the uncertainty principle (for position and momentum) states that one cannot assign exact simultaneous values to the position and momentum of a physical system. Rather, these quantities can only be determined with some characteristic “uncertainties” that cannot become arbitrarily small simultaneously. But what is the exact meaning of this principle, and indeed, is it really a principle of quantum mechanics? (In his original work, Heisenberg only speaks of uncertainty relations.) And what does it mean to say that a quantity is determined only up to some uncertainty? These are the main questions we will explore in the following, focusing on the views of Heisenberg and Bohr.