Noah Berthusen

I am currently an Advanced Physicist at Quantinuum. I received a PhD in Computer Science from the University of Maryland in September 2025. I worked with Daniel Gottesman on quantum error correction.

I received a Bachelor's degree in Software Engineering from Iowa State University in May 2021.

I can be reached at someone at example dot com or on LinkedIn. Also visit my Github to find code repositories for many of the projects below. A full list of publications can be found on my Google Scholar page.

Publications

Simple logical quantum computation with concatenated symplectic double codes

Noah Berthusen and Elijah Durso Sabina

Automorphism gadgets in homological product codes

Noah Berthusen, Michael J. Gullans, Yifan Hong, Maryam Mudassar, and Shi Jie Samuel Tan

Adaptive Syndrome Extraction

Noah Berthusen, Shi Jie Samuel Tan, Eric Huang, and Daniel Gottesman

Experiments with the 4D Surface Code on a QCCD Quantum Computer

Noah Berthusen, Joan Dreiling, Cameron Foltz, John P. Gaebler, Thomas M. Gatterman, Dan Gresh, Nathan Hewitt, Michael Mills, Steven A. Moses, Brian Neyenhuis, Peter Siegfried, and David Hayes

Toward a 2D Local Implementation of Quantum LDPC Codes

Noah Berthusen, Dhruv Devulapalli, Eddie Schoute, Andrew M. Childs, Michael J. Gullans, Alexey V. Gorshkov, and Daniel Gottesman

Partial Syndrome Measurement for Hypergraph Product Codes

Noah Berthusen and Daniel Gottesman

Blog post

Quantum Logic Gate Synthesis as a Markov Decision Process

M. Sohaib Alam, Noah F. Berthusen, and Peter P. Orth

Talks and Presentations

Adaptive Syndrome Extraction

April 2025. Invited talk for Asia Pacific QEC Seminars
September 2025. Invited talk for HonHai (Foxconn) QC meeting

Toward a 2D Local Implementation of Quantum LDPC Codes

September 2024. Contributed talk at TQC 2024

Partial Syndrome Measurement for Hypergraph Product Codes

October 2023. Contributed talk at QEC23