2 papers
quant-ph2025
Hierarchical Quantum Error Correction with Hypergraph Product Code and Rotated Surface Code
Junichi Haruna, Keisuke Fujii
We propose and analyze a hierarchical quantum error correction (QEC) scheme that concatenates hypergraph product (HGP) codes with rotated surface codes, which is compatible with qu…
quant-ph2024
End-to-end complexity for simulating the Schwinger model on quantum computers
Kazuki Sakamoto, Hayata Morisaki, Junichi Haruna +3
The Schwinger model is one of the simplest gauge theories. It is known that a topological term of the model leads to the infamous sign problem in the classical Monte Carlo method.…