Abstract
We assess experimentally the suitability of coupled-transmission-line resonators for studies of quantum phase transitions of light. We have measured devices with low photon hopping rates MHz to quantify disorder in individual cavity frequencies. The observed disorder is consistent with small imperfections in fabrication. We studied the dependence of the disorder on transmission-line geometry and used our results to fabricate devices with disorder less than two parts in . The normal-mode spectrum of devices with a high photon hopping rate MHz shows little effect of disorder, rendering resonator arrays a good backbone for the study of condensed-matter physics with photons.
- Received 28 March 2012
DOI:https://doi.org/10.1103/PhysRevA.86.023837
©2012 American Physical Society