IQIM Postdoctoral and Graduate Student Seminar

Thursday, November 20, 2025

2:00pm to 3:00pm

Annenberg 213

Local fault-tolerant error correction with simulated confinement

Ethan Lake, UC Berkeley,

Note: Special date and time for this talk. This talk begins at 2 pm on Thursday, November 20 in 213 Annenberg.

Abstract: I will discuss recent work on surface-code decoders where all operations---including classical data processing---are geometrically local and homogeneous in spacetime. These decoders use a classical cellular automaton to simulate an attractive confining interaction between anyons, an idea with a long history. I will show that previous constructions in this direction do not have a threshold, and will describe a simple procedure by which a threshold can be restored. The result is a fully-parallelized decoder which has essentially zero latency, can be implemented with a local Lindbladian, and has a competitively large error threshold. This talk will be based on arXiv:2506.03266 and arXiv:2510.08056.

For more information, please contact Marcia Brown by phone at 626-395-4013 or by email at [email protected].

Event Series

IQIM Postdoctoral and Graduate Student Seminar Series

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