                                          ⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒                                          
                                      ⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒                                      
                                 ⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒                                 
                                                                                                    
                         ⢀⣀⡀       ⣀⣤⣤                                                              
           ⢀⣀⣤⣶⢾⣿⣿⠗ ⢀⣤⣦  ⢹⣿⠁     ⢠⣼⡟⣿⠏            ⣀⣀ ⣀⣄⡀⣀⣤⣤  ⣠⣴⠶⣷⡆                                  
         ⣠⣾⡿⠛⠁⢠⣾⣿⠋ ⣰⣿⣿⠋ ⢠⣿⠇     ⣴⣿⢯⡾⠋⢀⣠⣤⣤⡀ ⣤⡶⢿⣦⡄ ⣼⣿⣯⢾⣿⣿⡿⣻⣿⠋⢀⣾⣿⠿⠟⣉⡴⠆ ⣀                               
        ⢾⠟⠁  ⣠⣿⡿⠃ ⣴⣿⡿⠃ ⣠⡿⢃⣠⣶⢿⣿⠆⣶⣿⡿⠏⢀⣴⣿⠏⠐⠛⣠⣿⡿⠁⣹⡿⠶⣿⣿⠟⢡⣿⡿⠋⣼⣿⣧⠶⠛⣿⣷⡶⠾⠋ ⢀⣿⠟                               
            ⣰⣿⡿⠃⢠⣾⣿⡿⠃⢀⣴⠟⢱⣿⣿⠵⠟⣁⣾⣿⡏⢁⣰⢿⣿⣏⣠⡴⠟⠻⣿⡷⠞⠋ ⠺⠿⠋ ⠛⠛  ⠉⠉⠁        ⠈     ⢀⣤⡾⢻⡇                       
           ⢰⣿⣿⣥⡾⠏⣿⣿⣧⣴⠟⠁ ⠻⣿⣷⡶⠞⠋⠙⠿⠟⠋⠁ ⠉⠋⠁                                ⣰⣿⠟⣰⡟⠁ ⢀⣀  ⣠⣴⡆               
           ⢸⣿⠿⠋⠁ ⠛⠛⠋⠁                  ⣰⣶⣿⣁⣀⣀⡀           ⢀⣀ ⢀⣠⡄ ⢀⣤⣴⣶⣤⢀⣼⣿⣫⡾⠋⢠⣴⡿⢛⣿⠇⢀⣿⢛⣿⣿⠇  ⢀⣤⠄        
                                 ⢠⣴⣶⣶⣶⣾⣿⡿⠛⣛⣿⡉⠁   ⣠⣴⠾⣶⣿⠗ ⣰⣿⠟ ⣾⡿⢃⣴⣿⣯⡵⠟⣁⣾⣿⡟⠉⢀⣴⣿⣿⠷⠛⣡⡴⠛ ⣿⣿⣃⣀⣤⠾⠋⠁         
                                    ⢀⣾⣿⠏ ⢀⣿⢻⣿⡿⠃⣠⣿⡿⢁⣰⣿⠟⣠⣾⣿⣟⣠⡾⠛⠛⠻⣿⣿⣥⣴⠾⠋⠿⣿⡶⠶⠋⠈⠻⠿⠿⠛⠁   ⠙⠛⠛⠉             
                                    ⣾⣿⠇⢀⡴⠛⢠⣿⣟⣡⠾⣿⣿⡴⠟⠿⠿⠛⠉⠈⠛⠛⠋    ⠈⠉⠁                                  
                                    ⠿⠿⠟⠋  ⠈⠛⠋⠁                                                      
                                              ⢀                                                     
                                                                                                    
                                 ⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒                                 
                                      ⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒                                      
                                          ⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒⠒

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// Physicist, builder, architect

Siyu Cheng's Home Page

I'm a PhD student in Physics at Boston College.

I focus on one of today’s most fundamental challenges: applying AI-driven automation to real scientific research.
I design and build agentic systems for experimental quantum physics.
My PhD research specializes in probing strongly correlated quantum materials using scanning tunneling microscopy (STM) and cryogenic UHV systems.

My Portfolios My Blogs

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// Portfolio

Recent Work...

Featured Unmodeled states and uncertain action outcomes in agentic scanning tunneling microscopy

Frontier LLM agents conditioned STM tips end to end on a real instrument and passed independent verification.

Featured Evaluating Verified Autonomy in Quantum Engineering

Quantum-Harbor is a quantum lab where a hidden grader checks every answer an AI agent submits. QIQCBench uses it to test 17 frontier agentic systems on 49 expert-authored tasks.

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// Blogs

Recent Writing...

Dev thoughts, research notes, and self reflections.

Featured Measured, Not Predicted

A note on trusting instrument output over elegant simulation narratives.