Jonathon Riddell
jonathon-riddell.bsky.social
Jonathon Riddell
@jonathon-riddell.bsky.social
Quantum many body physicist | youtuber
https://youtube.com/@jonathonriddell
June 1, 2025 at 11:01 PM
If you want to learn more I will be at APS March meeting talking about this work!

#quantum #physics #quantumcomputing

@bbrunetto.bsky.social
March 10, 2025 at 6:51 AM
This behavior also appears to be stable: shifting the model away from the DU point, we still observe faster state design preparation, but the story is more complicated than being characterized only by entangling power.
March 10, 2025 at 6:51 AM
The rate of approaching Haar statistics is governed by the entangling power of the static 2-local gates. Even modest entangling power is enough to be faster than circuits made up of 2-local Haar random gates.
March 10, 2025 at 6:51 AM
We do this with two strategies: random driving only on the boundary, or random driving each qubit for each layer of the curcuit. Remarkably, at the dual unitary point this prepares state designs significantly faster than circuits built entirely from random unitaries.
March 10, 2025 at 6:51 AM
In the past, studies have focused on the case where circuits are made up entirely of local random unitaries. Instead we approach the problem with fixed two-local gates, and restrict ourselves to inserting driving with one qubit random gates.
March 10, 2025 at 6:51 AM
#quantum #physics #science

I've always been passionate about this, and I recently had the opportunity to do another podcast: youtu.be/xtnFRWCvo9E?...
Statistical Mechanics, Quantum Dynamics, Entropy, Path of Science, More | Dr. Jonathon Riddell |Ep30
YouTube video by Genesis of Tomorrow
youtu.be
March 4, 2025 at 6:43 PM
AND of course signatures of more generic dynamics than traditional integrable models. The answer is yes! But with lots of open questions to push this truly to a spatially extended locally interacting Hamiltonian. #quantum #physics
February 11, 2025 at 10:25 AM
With dual unitary models, and random circuit models showing us that it is possible to write down minimal models for quantum chaos and generic dynamics we asked the question: is it possible to construct a model for continuous (energy preserving) dynamics, which has analytically tractable properties?
February 11, 2025 at 10:25 AM
Agreed I feel like we are saying the same thing. I'm advocating / wishing more scientists would pick up c/c++.
January 26, 2025 at 11:10 PM
Agreed! The problem is numpy and other libraries fairly often don't fit the workload you want or need for a given problem.

I agree python is a lovely front end when the tool you need exists.
January 26, 2025 at 8:30 PM
Of course this is more nuanced than "python slow, c++ fast". In a lot of cases folks are building complex solutions in python with tools that aren't designed for their workload or problem, this is the edge case I care about. If a compiled library in python meets what you need, I'm all for it!
January 26, 2025 at 1:31 AM
Oo I'm tempted! How do you get involved?
January 25, 2025 at 9:57 PM