Is Quantum Randomness Really Random?

[Bladibla]

I did not ask this query, but i found it quite interesting. (foreign wind gets credit for this..)

By definition random events are unpredictable.
Consider the tossing of a coin. It is considered a random event. But if you could know the exact initial position of the coin in the exact moment of the tossing, the forces applied on it, the air resistance, air speed and direction, gravity force, etc then you could predict the result ( head or tail ).

Physicists use to say the quantum phenomena are random. But are they really random or like in the coin example, you could determine the outcome if you could know all the factors that intervene in a quantum event ?

What would be your replies to this?
For people in the UK, This question was raised on the event of watching the doc series 'Horizon'

 

[ZapperZ]

I did not ask this query, but i found it quite interesting. (foreign wind gets credit for this..)



What would be your replies to this?
For people in the UK, This question was raised on the event of watching the doc series 'Horizon'

Note that what you are asking is NOT "uncertainty", a word in which, in QM, automatically means the Heisenberg Uncertainty Principle (HUP). What you are asking is the apparent "measurement problem" of QM in which a definite outcome appears out of a superposition of many different outcomes.

You may want to do a search on PF on "Schrodinger Cat", "superposition", etc. I know for a fact that I have written several responses on why QM's "randomness" is NOT the same as a coin-tossing randomness.

Zz.

 

[Bladibla]

Note that what you are asking is NOT "uncertainty", a word in which, in QM, automatically means the Heisenberg Uncertainty Principle (HUP). What you are asking is the apparent "measurement problem" of QM in which a definite outcome appears out of a superposition of many different outcomes.

You may want to do a search on PF on "Schrodinger Cat", "superposition", etc. I know for a fact that I have written several responses on why QM's "randomness" is NOT the same as a coin-tossing randomness.

Zz.

My apologies for the misleading title. And more apologies for not searching..
You can lock this thread if you want to.