Multi-photon spectroscopy of a hybrid quantum system

Abstract

We report on experimental multi-photon spectroscopy of a hybrid quantum system consisting of a superconducting phase qubit coherently coupled to an intrinsic two-level defect. We directly probe hybridized states of the combined qubit-defect system in the strongly interacting regime, where both the qubit-defect coupling and the driving cannot be considered as weak perturbations. This regime is described by a theoretical model which incorporates anharmonic corrections, multi-photon processes and decoherence. We present a detailed comparison between experiment and theory and find excellent agreement over a wide range of parameters.

6 pages, 6 figures

References in corpus (8)

• Many-Body Physics with Ultracold Gases
• Scalable quantum register based on coupled electron spins in a room temperature solid
• Coherence times of dressed states of a superconducting qubit under extreme driving
• Microscopic origin of low frequency flux noise in Josephson circuits
• Temperature dependence of coherent oscillations in Josephson phase qubits
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Cited by in corpus (14)

• Hybrid quantum systems based on magnonics
• 1/f noise: implications for solid-state quantum information
• Towards understanding two-level-systems in amorphous solids -- Insights from quantum circuits
• Interacting two-level defects as sources of fluctuating high-frequency noise in superconducting circuits
• Multi-mode mediated exchange coupling in cavity QED
• Measuring the temperature dependence of individual two-level systems by direct coherent control
• A Tutorial on Quantum Master Equations: Tips and tricks for quantum optics, quantum computing and beyond
• Quantitative evaluation of defect-models in superconducting phase qubits
• Multiphoton transitions in Josephson-junction qubits (Review Article)
• Phonon engineering of atomic-scale defects in superconducting quantum circuits
• Probe spectroscopy of quasienergy states
• Phase qubits fabricated with trilayer junctions
• Valley Hall Transport of Photon-Dressed Quasiparticles in 2D Dirac Semiconductors
• Correlated transport through junction arrays in the small Josephson energy limit: incoherent Cooper-pairs and hot electrons