6 papers
Non-CSS Quantum Code Embedding
Andrew C. Yuan, Nouédyn Baspin
We generalize the unified framework in [Phys. Rev. A 113, 022438 (2026)] to accommodate arbitrary stabilizer codes (referred as non-CSS for emphasis). The generalization has immedi…
4D and 5D Layer Codes through Color Routing
Andrew C. Yuan, Nouédyn Baspin
We introduce and explicit Calderbank-Shor-Steane (CSS) code construction that generalizes the Layer codes to dimensions. Much like its predecessor, the present construction…
Parsimonious Quantum Low-Density Parity-Check Code Surgery
Andrew C. Yuan, Alexander Cowtan, Zhiyang He +2
Quantum code surgery offers a flexible, low-overhead framework for executing logical measurements within quantum error-correcting codes. It encompasses several fault-tolerant logic…
Quantum Weight Reduction with Layer Codes
Andrew C. Yuan, Nouédyn Baspin, Dominic J. Williamson
Quantum weight reduction procedures ease the implementation of quantum codes by sparsifying them, resulting in low-weight checks and low-degree qubits. However, to date, only few q…
Unified Framework for Quantum Code Embedding
Andrew C. Yuan
Given a Calderbank-Shor-Steane (CSS) code, it is sometimes necessary to modify the code by adding an arbitrary number of physical qubits and parity checks. Motivations may include…
Phase sensitive information from a planar Josephson junction
Andrew C. Yuan, Steven A. Kivelson
Josephson tunneling across a planar junction generally depends on the relative twist angle, , between the two layers. However, if under a discrete rotation, the order parameter…