#  Zhengwei Liu (Tsinghua University): Alterfold Theory and Entanglement Entropy 

 



####  calendar\_today Date and Time 

 **April 8, 2025** 

 04:30PM - 05:30PM EDT 

####  pin\_drop Location 

 **Jefferson 256 and Zoom**  

https://harvard.zoom.us/j/779283357?pwd=MitXVm1pYUlJVzZqT3lwV2pCT1ZUQT09

 

 

 



 

Passcode: 657361

Speaker: Zhengwei Liu

Title: Alterfold Theory and Entanglement Entropy

Abstract:

We will present new insights in alterfold theory to study entanglement entropy. We illustrate these insights by computing the entanglement entropy for thermal quantum pure states on surface codes at finite temperature. Furthermore, we propose an entanglement rank conjecture for thermal quantum pure states on generalized Levin-Wen models in any dimension. It is based on joint work with Z. Zhao, arXiv preprint to appear.



 

 



 

 

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