Imaging Photon Lattice States by Scanning Defect Microscopy

Abstract

Microwave photons inside lattices of coupled resonators and superconducting qubits can exhibit surprising matter-like behavior. Realizing such open-system quantum simulators presents an experimental challenge and requires new tools and measurement techniques. Here, we introduce Scanning Defect Microscopy as one such tool and illustrate its use in mapping the normal-mode structure of microwave photons inside a 49-site Kagome lattice of coplanar waveguide resonators. Scanning is accomplished by moving a probe equipped with a sapphire tip across the lattice. This locally perturbs resonator frequencies and induces shifts of the lattice resonance frequencies which we determine by measuring the transmission spectrum. From the magnitude of mode shifts we can reconstruct photon field amplitudes at each lattice site and thus create spatial images of the photon-lattice normal modes.

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Cited by in corpus (14)

• Microwave photonics with superconducting quantum circuits
• Quantum simulations and many-body physics with light
• Quantum bits with Josephson junctions
• Quantum optics with giant atoms -- the first five years
• Interaction-induced time-symmetry breaking in driven quantum oscillators
• Topological lattices realized in superconducting circuit optomechanics
• Fragile topology in line-graph lattices with two, three, or four gapped flat bands
• Hamiltonian Tomography of Photonic Lattices
• Topology-dependent quantum dynamics and entanglement-dependent topological pumping in superconducting qubit chains
• Quantum probe spectroscopy for cold atomic systems
• Observation of topological valley Hall edge states in honeycomb lattices of superconducting microwave resonators
• Stable many-body resonances in open quantum systems
• Dynamical dimerization phase in Jaynes-Cummings lattices
• Bulk properties of honeycomb lattices of superconducting microwave resonators