Joint ICTP/SISSA Statistical Physics Seminar, 3 February at 11:00am, by S.Y. Kim

[CMSP Seminars Secretariat]

---------------------------------------
Joint ICTP/SISSA Statistical Physics Seminar
---------------------------------------

** * * Tuesday 3 February**2026, 11:00**am ***(CET)** * **
*Euler Lecture Hall **(Leonardo Building)***
**
/Zoom: https://zoom.us/meeting/register/IGH5N34_ThO2Kal6IAMk7w/

Speaker:* Se Yong Kim *(Sejong University, South Korea)

Title: *Fundamental Error Thresholds and $Z(2)$ Statistical Mechanics 
Models **
*

Abstract:

A fundamental error threshold is the critical error rate of a physical 
qubit system in quantum error correction (QEC). If the error rate per 
qubit or quantum gate operation is below this threshold, increasing the 
size of error-correcting code will exponentially suppress the logical 
qubit error rate. Thus, the fundamental error threshold is important in 
realizing a quantum computer. There is a general scheme to map the 
syndrome decoding into a statistical physics model. Studying phase 
diagram of the corresponding statistical mechanics model via Monte 
Carlso simulation, one can study this fundamental error threshold of a 
QEC code. Here we report our finding on the fundamental error thresholds 
of 2-dimensional toric code/surface code with various quantum circuit 
error scenarios.