iiinova — where your digital self keeps evolving

Yanting Teng

@yteng.bsky.social

physicist @epfl | climber + cats

Yanting Teng @yteng.bsky.social · 16/12/2025

[4] If you like operator dynamics, symmetries, or making classical simulations suffer a little less, have a look. Comments welcome :) Code is open-source too (e.g. see our example notebook: lnkd.in/eP9_MKV4).

lnkd.in

This link will take you to a page that’s not on LinkedIn

000

Yanting Teng @yteng.bsky.social · 16/12/2025

[3] Practically, this makes Pauli propagation more stable and more accurate under truncation and noise, and lets us push simulations further (e.g. Ising chains and all-to-all Heisenberg dynamics) with the same compute budget.

lnkd.in

This link will take you to a page that’s not on LinkedIn

100

Yanting Teng @yteng.bsky.social · 16/12/2025

[2] The idea is to merge Pauli strings related by symmetry and only propagate one representative per orbit. Group theory does the bookkeeping; memory usage drops by a factor set by the symmetry size.

lnkd.in

This link will take you to a page that’s not on LinkedIn

100

Yanting Teng @yteng.bsky.social · 16/12/2025

[1] Pauli propagation is a useful way to classically simulate quantum dynamics — until the number of Pauli strings explodes and your memory does the same. In this paper, we ask a simple question: if the circuit has symmetry, why are we propagating the same Pauli strings over and over again?

lnkd.in

This link will take you to a page that’s not on LinkedIn

120

Yanting Teng @yteng.bsky.social · 16/12/2025

Happy to share our paper: Leveraging Symmetry Merging in Pauli Propagation scirate.com/arxiv/2512.1... tl;dr We improve standard Pauli propagation by merging Pauli strings related by symmetry. Shoutout to my collaborators @sueyeonchung.bsky.social @quantummanuel.bsky.social @qzoeholmes.bsky.social

191

Reposted by Yanting Teng

Manuel Rudolph @quantummanuel.bsky.social · 29/05/2025

❗New paper and open-source library❗ PauliPropagation.jl is your go-to library for simulating quantum circuits via Pauli propagation. Our paper provides a thorough overview of this new classical simulation method. Paper: scirate.com/arxiv/2505.21606 Library: github.com/MSRudolph/PauliPropagation.jl

1212