What exactly is the definition of a "quantum event"?

[111111]

I would like to understand quantum mechanics and physics in general better. From what I understand, quantum mechanics basically says that at the smallest size of the universe there is particles or strings of which everything is made of, which jump around randomly, and unpredictably. Also from what I understand, basically every other thing other than quantum mechanics, is deterministic (if you could measure all the particles in a system you could calculate its state at any point in time).

Questions:

Does quantum mechanics have an effect on the laws of physics? Example: If you have several large pure titanium balls in and empty part of space and their exact masses are known, and all gravitational pulls are known, and they are shot from a canon toward each other, and the exact time they leave the cannon, exact location, exact speed and direction are known, it should be possible to calculate exactly where they will be at any time in the future, or would it be possible that quantum effects could theoretically cause them to end up in completely different places than you would expect?

What exactly is the definition of a "quantum event"?

 

[olgranpappy]

What exactly is the definition of a "quantum event"?

first off, "quantized" means "discrete". And "event" means "something that happens at some given place and time."

So, I think usually people mean something like "measurement" when they say "quantum event", especially a counting measurement like a single photon hitting a photon-detector or a single electron hitting the viewing screen in a diffraction experiment.

you can look it up in a physics dictionary too

 

[denian]

A "quantum event" refers to a phenomenon that occurs at the quantum level, which is the scale of individual particles such as atoms and subatomic particles. In quantum mechanics, these events are described by mathematical equations and probabilities rather than deterministic laws. This means that the behavior of particles at this level is not fully predictable and can exhibit seemingly random and unpredictable behavior. This is due to the inherent uncertainty and probabilistic nature of quantum mechanics. So in the example given, while the initial conditions and laws of physics may be known, the behavior of the particles at the quantum level may still result in unexpected outcomes. This is a fundamental aspect of quantum mechanics and it does have an effect on the laws of physics as we understand them at larger scales.