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IEEE Photonics Conference

Microwave quantum photonics in superconducting circuits

Yasunobu Nakamura

Published Sep 1, 2012• 4 citations
Publisher

Abstract

Those successful demonstrations of manipulating and detecting the quantum states of microwave photons indicate that superconducting quantum circuits will also be versatile tools in interfacing quantum information between different quantum systems in the microwave domain. Hybrid systems combining superconducting quantum circuits with spin ensembles as well as nanoelectromechanical systems have demonstrated coherent coupling in between [14-18]. Furthermore, quantum interface between microwave and optical photons based on those hybrid constructions are currently investigated [19-21].

DOI
10.1109/ipcon.2012.6358734

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The last two decades have seen tremendous advances in our ability to generate and manipulate quantum coherence in mesoscopic superconducting circuits. These advances have opened up the study of quantum optics of microwave photons in superconducting circuits as well as providing important hardware for the manipulation of quantum information. Focusing primarily on charge-based qubits, we provide a brief overview of these developments and discuss the present state of the art. We also survey the remarkable progress that has been made in realizing circuit quantum electrodynamics (QED) in which superconducting artificial atoms are strongly coupled to individual microwave photons.
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