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arXiv · 1706.09527

Superconducting Qubit-Resonator-Atom Hybrid System

Deshui Yu·Leong Chuan Kwek·Luigi Amico·Rainer Dumke
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Abstract

We propose a hybrid quantum system, where an $LC$ resonator inductively interacts with a flux qubit and is capacitively coupled to a Rydberg atom. Varying the external magnetic flux bias controls the flux-qubit flipping and the flux qubit-resonator interface. The atomic spectrum is tuned via an electrostatic field, manipulating the qubit-state transition of atom and the atom-resonator coupling. Different types of entanglement of superconducting, photonic, and atomic qubits can be prepared via simply tuning the flux bias and electrostatic field, leading to the implementation of three-qubit Toffoli logic gate.

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Deshui Yu, Leong Chuan Kwek, Luigi Amico, Rainer Dumke. 2017-06-29. Superconducting Qubit-Resonator-Atom Hybrid System. https://doi.org/10.1088/2058-9565/aa7c50

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