3 papers
quant-ph2026
Revisiting the multi-mode rhombus circuit as a biased-noise qubit
Pablo Aramburu Sanchez, Trevyn F. Q. Larson, Anthony P. McFadden +3
In this work, we revisit the idea of using an interferometer of pairs of Josephson junctions as a protected rhombus qubit. Unlike in the original proposal, where the qubit states a…
quant-ph2026
Representation theory of inhomogeneous Gaussian unitaries
Jingqi Sun, Joshua Combes, Lucas Hackl
Gaussian unitaries, generated by quadratic Hamiltonians, are fundamental in quantum optics and continuous-variable computing. Their structures correspond to symplectic (bosons) and…
quant-ph2024
Enumeration of all superconducting circuits up to 5 nodes
Eli J. Weissler, Mohit Bhat, Zhenxing Liu +1
Nonlinear superconducting circuits can be used as amplifiers, transducers, and qubits. Only a handful of superconducting circuits have been analyzed or built, so many high-performi…