Observation of the Crossover from Photon Ordering to Delocalization in Tunably Coupled Resonators
Collodo MC, Potocnik A, Gasparinetti S, Besse JC, Pechal M, Sameti M, Hartmann MJ, Wallraff A, Eichler C (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 122
Article Number: 183601
Journal Issue: 18
DOI: 10.1103/PhysRevLett.122.183601
Abstract
Networks of nonlinear resonators offer intriguing perspectives as quantum simulators for nonequilibrium many-body phases of driven-dissipative systems. Here, we employ photon correlation measurements to study the radiation fields emitted from a system of two superconducting resonators in a driven-dissipative regime, coupled nonlinearly by a superconducting quantum interference device, with cross-Kerr interactions dominating over on-site Kerr interactions. We apply a parametrically modulated magnetic flux to control the linear photon hopping rate between the two resonators and its ratio with the cross-Kerr rate. When increasing the hopping rate, we observe a crossover from an ordered to a delocalized state of photons. The presented coupling scheme is intrinsically robust to frequency disorder and may therefore prove useful for realizing larger-scale resonator arrays.
Authors with CRIS profile
Involved external institutions
Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Switzerland (CH)
Heriot-Watt University
United Kingdom (GB)
Switzerland (CH)
Heriot-Watt University
United Kingdom (GB)
How to cite
APA:
Collodo, M.C., Potocnik, A., Gasparinetti, S., Besse, J.-C., Pechal, M., Sameti, M.,... Eichler, C. (2019). Observation of the Crossover from Photon Ordering to Delocalization in Tunably Coupled Resonators. Physical Review Letters, 122(18). https://doi.org/10.1103/PhysRevLett.122.183601
MLA:
Collodo, Michele C., et al. "Observation of the Crossover from Photon Ordering to Delocalization in Tunably Coupled Resonators." Physical Review Letters 122.18 (2019).
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