SPOKEN:
So class, today we're going to learn about Schrödinger’s cat, a thought experiment in quantum mechanics.
RAP:
So Schrödinger, he had this thought
If he took a cat and he put it in a box
With some radioactive matter
There was a chance that the latter
Might scatter
And decay
So if the atom was to go this way
Let off an alpha ray
A vial of acid would be shattered
And the cat would die, but no matter
The radioactive material
Like a regular TV serial
You know what could happen
But you don't know what will happen
So they say we could have decay
Or maybe it'll just stay this way
No decay
So how would we know
If the cat's alive or dead...
Could it be both?
CHORUS:
Schrödinger he took a cat
And he put it in a box
He put a substance in the air
That had a chance of going off
And by the end of an hour's time
We'd open up and see
If the cat was alive and going strong
Or as dead as a cat can be
RAP:
Well if we don't know the state of the cat
Before we open the box to see where it's at
Then the cat could be occupying
Both states
Hold up jump back
Reiterate
I said if we don't know the state of the cat
Before we open the box to see where it's at
Then the cat could be occupying
Both states got it?
Got it!
The physicists they call this
Superposition
When you ain't in one state
Or one condition
And you ain't in the other
By definition
It's a mix of the two
Think juxtaposition
CHORUS:
Schrödinger he took a cat
And he put it in a box
He put a substance in the air
That had a chance of going off
And by the end of an hour's time
We'd open up and see
If the cat was alive and going strong
Or as dead as a cat can be
RAP:
This little experiment in someone's head
Carries the weight of a brick of lead
It has some far reaching implications
And there have been many interpretations
Is it the observer that makes the difference?
The causes the cat to assume a preference
Of the state of being alive or dead
Or is it just one of the possible threads?
Could every possibility, every probability,
Be a new world, that simultaneously
Exists in this universe
And nobody would know
Quantum decoherence
Makes sure there's no appearance
Of other worlds in our own
Yeah, uh huh
CHORUS:
Schrödinger he took a cat
And he put it in a box
He put a substance in the air
That had a chance of going off
And by the end of an hour's time
We'd open up and see
If the cat was alive and going strong
Or as dead as a cat can be
SPOKEN:
And that, class, is something to think about until next time.