Solid state optical interconnect between distant superconducting quantum chips

Abstract

We propose a design for a quantum interface exploiting the electron spins in crystals to swap the quantum states between the optical and microwave. Using sideband driving of a superconducting flux qubit and a combined cavity/solid-state spin ensemble Raman transition, we demonstrate how a stimulated Raman adiabatic passage (STIRAP)-type operation can swap the quantum state between a superconducting flux qubit and an optical cavity mode with a fidelity higher than $90\%$. We further consider two distant superconducting qubits with their respective interfaces joined by an optical fiber and show a quantum transfer fidelity exceeding $90\%$ between the two distant qubits.

5 figures, 5 pages

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Cited by in corpus (11)

• Microwave multimode memory with an Er${}^{3+}$:Y${}_2$SiO${}_5$ spin ensemble
• Quantum microwave-optical interface with nitrogen-vacancy centers in diamond
• Generating spin squeezing states and Greenberger-Horne-Zeilinger entanglement using a hybrid phonon-spin ensemble in diamond
• Quantum routing of single optical photons with a superconducting flux qubit
• Measurement-Induced Long-Distance Entanglement of Superconducting Qubits using Optomechanical Transducers
• Spatially Adiabatic Frequency Conversion in Optoelectromechanical Arrays
• Coupling a single NV center with a superconducting qubit via the electro-optic effect
• Preparing squeezed spin states in a spin-mechanical hybrid system with silicon-vacancy centers
• A controllable superconducting electromechanical oscillator with a suspended membrane
• Reversible optical-microwave quantum conversion assisted by optomechanical dynamically-dark modes
• Interfacing a topological qubit with a spin qubit in a hybrid quantum system