Jesse Berezovsky
jesseberezovsky.bsky.social
Jesse Berezovsky
@jesseberezovsky.bsky.social
Physics professor @ CWRU. Experimental quantum materials, magnetism, and applications of stat mech to music theory and composition.
And when measured, returns one of those stocks at random, yielding an investment strategy that probably still beats most professional fund managers.
November 24, 2025 at 11:36 PM
As I like to tell students, the 2nd law of thermodynamics is not really a law. More like a strongly worded suggestion.
November 24, 2025 at 12:06 PM
In fact, I was inspired by Something Deeply Hidden, where you print an example of a random number from a QRNG: the demo queries a QRNG via wifi, deciding which way to send the first ball.
November 18, 2025 at 7:37 PM
Just last week I got to show my quantum mechanics class my quantum measurement demo. It illustrates amplification and decoherence going from a few-particle wave function to a macroscopic pointer, which we conclude must be pointing both ways in different parts of the wave function.
Quantum measurement demo is complete. A particle starting on the right side of the box launches a cascade of increasingly large particles down the right track. Vice versa on the left. But what if we start a particle in a quantum superposition of left and right? (1/5) ⚛️🧪
November 18, 2025 at 7:37 PM
And undoubtedly those planks have length l, width w, and height hbar.
November 11, 2025 at 10:36 PM
As you say, to be fair, this is extremely confusing. It’s unclear to me what they’re even trying to show. Just reformulating equations without “i” or variables that stand for c-numbers? Or trying to avoid equations with quantities that *could* be recast as c-numbers?
November 8, 2025 at 1:57 PM
I agree, and in case people don’t know it is quite easy to claim your unclaimed funds, and then do whatever you want with them, such as anything other than building a new Browns stadium.

unclaimedfunds.ohio.gov
OH Unclaimed Property
unclaimedfunds.ohio.gov
November 1, 2025 at 11:54 AM
Seems they didn’t include the correct answer for how the number of representatives is determined: Every state gets one, and the remainder up to 435 is divided up by population. Thereby overrepresenting small states even in the house.
October 30, 2025 at 11:13 AM
What happens when you hook a quantum lie detector up to a quantum bullshit detector @bullshitquantum.bsky.social ?
October 13, 2025 at 12:45 PM
A unitary interaction between the systems where information about the amplitudes of a set of orthogonal states |sₙ〉of a system is transferred to a set of orthogonal states |Aₙ〉of a second system like so:
October 5, 2025 at 8:20 PM
A transfer of information from one system to another, then decoherence.
October 5, 2025 at 3:11 AM
Next, try 2001: A Space Odyssey. After the initial bit with the cavemen, they get to space pretty quick.
October 4, 2025 at 10:12 PM
She gives me a look of pure terror. Turns out she was looking for a freshman orientation event in a different room.
October 3, 2025 at 5:32 PM
Do you present the Born rule as a fundamental postulate, or say (or suggest) that it may be derivable?
September 24, 2025 at 2:45 PM
Yes! You might enjoy my semi-technical tutorial on many worlds: jablab.case.edu/catland/
Welcome to Catland! — Catland 1.0 documentation
jablab.case.edu
September 17, 2025 at 1:55 PM
I remember when we used overhead projectors which were pretty foolproof. Then we switched to digital projectors, which initially were often flaky. We finally got that figured out, then added zoom into the mix and made it flaky again. (Maybe people older than me remember when overheads were flaky…)
September 15, 2025 at 7:43 PM