Is quantum mechanics truly random?

Question

Is quantum mechanics truly random?

Answer 1

Not as you think!

But to understand it you should study it.

Answer 2

Classically, it is random.

In quantum mechanics, you find the probability of getting a result in an experiment. The result is random but its probability is for sure.

Answer 3

Since I have just answered a similar question I will cut and paste my answer:

The idea that quantum mechanics is indeterminate in based on the Copenhagen interpretation of quantum mechanics and other interpretations that use extra structure to explain why a quantum state collapses in the way that it does. http://www.thestargarden.co.uk/Quantum%2...

A popular interpretation now a days is the Everett approach to quantum mechanics. http://www.thestargarden.co.uk/Everett%2...

This solves a number of philosophical problems:

http://www.thestargarden.co.uk/measureme...

and it is possible that it could be proven when we have more advanced technology:

http://www.thestargarden.co.uk/proving%2...

This approach leads to the idea that we all exist in quantum states in all times and so there are an infinite amount of parallel worlds. The universe is determinate because all physically possible situations are actualized. This is, however, compatible with free will:

http://www.thestargarden.co.uk/Freewill%...

http://www.thestargarden.co.uk/Quantum%2...

Answer 4

Is it? Nobody knows. It's just a prediction that the particles which exist at such lowest level of space, meaning: trillionth times smaller than us, are tightly packed. "They are closer than you think!"- this is what physicists say. And I've faith in this. Random in the quantum world means "Chance". Yup! Everything at that level is happening by chance. No wonder how those small molecules produce such high amount of energy with just a simple collision.

What I'm trying to say is that, there is a probability for a particle to be at one place in "infinite numbers of different times". A particle might just be at one place, but at the same time might be colliding with the other particle or might be bumping in and out or just sliding through its space. I don't think this made u clear but I would suggest you to watch "The Elegant Universe" by Brian Greene, a physicist from Columbia University. You can either youtube it or google it! I am sure that you'll find your answer there.

It's fascinating! The videos won't make you feel bored! Cheers!