Does the law of cause and effect work in the microcosm?

The British rate, also known as causality, is a way for us to understand the macrocosm, simply put, if we know the initial state of something, we can meet the laws and states of things according to certain laws of nature.

But this is not the case in the microcosm, even if we observe a hundred million. The state of motion of the particle, we can never know the state and position of the next moment, because the particles in the microscopic world are not determined, everything can only be expressed by the wave function, when we try to maybe the position of the particle is its momentum, it will become very vague, and when we want to get the momentum of the particle, the position will become very blurred, only in the microscopic world, everything is uncertain, this uncertainty is the inherent property of microscopic particles. It's not because of the level of our observations.

The uncertainty of the microcosm does not violate the laws of England, as we usually call the law of cause and effect. It is also aimed at the macrocosm of the world in which we live, and there is no forced law of cause and effect, and it must be applied in the microcosm.

Because of what, what seems to indicate a kind of implication relationship. But implication is not causation, and even if there is a causal relationship, the two wrong causes may not contain the effect.

In the microcosm, the law of cause and effect plays a certain role, and this role is still very important, very important.

Cause and effect is actually a theory of Buddhism, and Buddhism also has an extraordinary theory, which is the doctrine of mesons. This mustard theory is actually the microcosm of the world.

The special theory of relativity shows that it is impossible for any object to move or signal to travel faster than the speed of light (in a vacuum), so the law of cause and effect in physics can be expressed as follows: if the interval between two events is empty-like, they cannot affect each other.

From the law of cause and effect, we can derive the integral relation between physically measurable dispersion relations, which are useful in many areas of physics. Although a conclusive test has not yet been made in the micro realm, it is generally accepted that the micro phenomenon will still obey the law of cause and effect, or at least that it is a reasonable assumption.

Essentially, the study of microscopic causality is closely related to the theory of relativity, so it is difficult to give an exact formulation of the law of causality in non-relativistic quantum mechanics. Roughly speaking, it is similar to the formulation in classical electromagnetic theory, and is reflected in the constraint of the scattering amplitude: the amplitude of the scattering wave must be zero before the incident wave hits the scattering center.

In quantum field theory, the causal law is embodied in the constraint of the reciprocal relation of the field operator: in Heisenberg's landscape, if the interval between the two Bose field operators is empty-like, then their reciprocal resonance is equal to zero (correspondingly, for the two Fermi field operators, their anti-reciprocal resonance is equal to zero). It follows from this that for microscopic measurability, when the interval between two measurement points is empty-like, they do not interfere with each other.

In quantum field theory, microscopic causality is combined with the principles of unitarianism, spectral conditions, and cross-symmetry, and the dispersion relationship satisfying the scattering amplitude can also be derived.