Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 40: Poster: Quantum Computation: Hardware Platforms

FM 40.7: Poster

Dienstag, 24. September 2019, 16:30–18:30, Tents

Optimization of the Readout of a Superconducting Qutrit — •Susanna Kirchhoff — Theoretical Physics, Saarland University, 66123 Saarbrücken, Germany

Superconducting qubits can be read out by driving a resonator coupled to the qubit and measuring the response. An arbitrary qubit state can be reconstructed using the responses of the basis states. For a three level system (qutrit) the readout is more challenging. In this work methods to improve the readout of a three level system are explored. The simulation data is based on the solution of a Bloch-type system of equations that was derived using the Jaynes-Cummings Hamiltonian with and without dispersive approximation. The results are compared to experimental data.