Quasi-1D Coplanar-Waveguide Lattices

The field of circuit QED has emerged as a rich platform for both quantum computation and quantum simulation. Lattices of coplanar waveguide (CPW) resonators realize artificial photonic materials in the tight binding limit [1] capable of realizing non-Eucliudean geometries [2] and unconventional unit cells [3]. Combined with strong qubit-photon interactions, these systems can be used to study dynamical phase transitions, many-body phenomena, and spin models in driven-dissipative systems. In practice, fabrication of new lattice requires precise control over resonator frequencies and geometries. Here we will present progress towards development of new quasi 1D CPW lattices, which exhibit new spectral features and new forms of photon-mediated qubit-qubit interaction, beyond those previously observed in simple 1D chains [4].



[1] D. Underwood et al., Phys. Rev. A 86, 023837 (2012)

[2] A. J. Kollár et al., Nature 571, 45 (2019)

[3] A. J. Kollár et al., Comm. Math. Phys. 376,1909 (2019)

[4] N. M. Sundaresanet al., Phys. Rev. X 9, 011021 (2019)