On "Consistent Quantization of Nearly Singular Superconducting Circuits"
arXiv:2408.05174 · doi:10.1103/PhysRevX.15.028001
Abstract
The analysis conducted by Rymarz and DiVincenzo (Phys. Rev. X 13, 021017 (2023)) regarding quantization of superconducting circuits is insufficient to justify their general conclusions, most importantly the need to discard Kirchhoff's laws to effect variable reductions. Amongst a variety of reasons, one source of several disagreements with experimental and theoretical results is the long-standing dispute between extended vs compact variables in the presence of Josephson junctions.
16 pages. 5 figures. Comments are most welcome. Typo corrected. Updated Fig. 5 and corrected related text imprecisions