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Trapped Ion Quantum Computing Superconducting Qubits

On-Chip Quantum Dot Light Source for Quantum State Readout

arXiv
Authors: Y. -Y. Liu, J. Stehlik, X. Mi, T. Hartke, J. R. Petta

Year

2017

Paper ID

44368

Status

Preprint

Abstract Read

~2 min

Abstract Words

102

Citations

N/A

Abstract

We use microwave radiation generated by a semiconductor double quantum dot (DQD) micromaser for charge state detection. A cavity is populated with n_c 6000 photons by driving a current through an emitter DQD. These photons are used to sense the charge state of a target DQD that is located at the opposite end of the cavity. Charge dynamics in the target DQD influence the output power and emission frequency of the maser. Three different readout mechanisms are compared. The detection scheme requires no cavity input field and may potentially be used to improve the scalability of semiconductor and superconducting qubit readout technologies.

Why This Paper Matters

  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • We use microwave radiation generated by a semiconductor double quantum dot (DQD) micromaser for charge state detection.

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