A scanning transmon qubit for strong coupling circuit quantum electrodynamics
arXiv:1303.0874 · doi:10.1038/ncomms2991
Abstract
Like a quantum computer designed for a particular class of problems, a quantum simulator enables quantitative modeling of quantum systems that is computationally intractable with a classical computer. Quantum simulations of quantum many-body systems have been performed using ultracold atoms and trapped ions among other systems. Superconducting circuits have recently been investigated as an alternative system in which microwave photons confined to a lattice of coupled resonators act as the particles under study with qubits coupled to the resonators producing effective photon-photon interactions. Such a system promises insight into the nonequilibrium physics of interacting bosons but new tools are needed to understand this complex behavior. Here we demonstrate the operation of a scanning transmon qubit and propose its use as a local probe of photon number within a superconducting resonator lattice. We map the coupling strength of the qubit to a resonator on a separate chip and show that the system reaches the strong coupling regime over a wide scanning area.
11 pages, 8 figures
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- Dipolar Spin Models with Arrays of Superconducting Qubits
- Light-matter decoupling and term detection in superconducting circuits
- Hybrid quantum magnetism in circuit-QED: from spin-photon waves to many-body spectroscopy
- Witnessing topological Weyl semimetal phase in a minimal circuit-QED lattice
- Transmon-based simulator of nonlocal electron-phonon coupling: A platform for observing sharp small-polaron transitions
- An Autonomous Stabilizer for Incompressible Photon Fluids and Solids
- Entanglement of superconducting qubits via acceleration radiation
- Validating and controlling quantum enhancement against noise by motion of a qubit
- Photon-mediated qubit interactions in 1D discrete and continous models
- Non-Markovianity and coherence of a moving qubit inside a leaky cavity
- Quick charging of a quantum battery with superposed trajecotries
- Imaging Photon Lattice States by Scanning Defect Microscopy
- Superluminal Physics with Superconducting Circuit Technology
- Remote sensing of a levitated superconductor with a flux-tunable microwave cavity
- Visualizing dissipative charge carrier dynamics at the nanoscale with superconducting charge qubit microscopy