Tim Maudlin
speaker
4,767 appearances
2 recordings
1 series
first heard Jul 2026
last heard 31 Aug
Tim Maudlin’s voice in public audio — every appearance, attributed to the second.
Trend
recordings per month · last 12 monthsRecordings per month over the last 12 months — 2 in all, peaking in Aug 2026 with 1.
Appearances
If you're able to perfectly predict what a particle will do if you check in the X direction.
Then
You will be completely uncertain what it will do if you check in the y direction, in an orthogonal direction, if you check at right angles or the z direction, anything at right angles.
If you're the more certain you are about what it'll do in the x direction, the less certain you are about what it'll do in the y direction, and vice versa.
And that fact, and that just falls right out of the quantum.
Quantum formalism, that's an example of what's called the Heisenberg uncertainty relation that everybody's heard of, and nobody disputes that.
I cannot prepare a particle.
in a way that I can predict if you check X, it'll say go up, and if you check Y, it'll go up, right?
There's just there is no such quantum mechanical state.
So it for a single particle
It's kind of easy if you say, well, what spin state is it in?
Normally what you'd say is, well, there's some direction in which it's spin up or spin down.
You have to tell me that direction.
You have to tell me whether it's up or down.
Then you've nailed it down.
That's that's the spin state it's in.
Now what if I have two particles?
What if, because we're now going to deal with sending a two-particle system, we're going to send one particle to Alice and one to Bob.
What kind of spin states can a pair of particles be in?
Well, the first thing you want to say, which is kind of obvious, is they they ought to be in these states.
Showing 481–500 of 4,767 · page 25 of 239
← Previous
Next →