3D Integration for Modular Quantum Computer based on Diamond Spin Qubits
Ryoichi Ishihara (TU Delft - Quantum Circuit Architectures and Technology, TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Ishihara Lab)
Jefferel Hermias (Student TU Delft)
S. Neji (Student TU Delft)
K.Y. Yu (TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Ishihara Lab)
M.C. van der Maas (TU Delft - QID/Ishihara Lab, TU Delft - QuTech Advanced Research Centre)
Salahuddin Nur (TU Delft - QuTech Advanced Research Centre, TU Delft - QID/Ishihara Lab)
T. Iwai (Fujitsu Limited)
Tetsuya Miyatake (Fujitsu Limited)
S. Miyahara (Fujitsu Limited)
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Abstract
Quantum computer chip based on spin qubits in diamond uses modules that are entangled with on-chip optical links. This enables an increased connectivity and a negligible crosstalk and error-rate when the number of qubits increases onchip. Here, 3D integration is the key enabling technology for a large-scale integration of the diamond spin qubits with photonic and electronic circuits for routing, control and readout of qubits. There are several engineering challenges to integrate the large number of spins in diamond with the on-chip circuits operating at a cryogenic temperature. In this paper we will address challenges, present recent results and discuss future outlook of the integration technology for realization of a scalable quantum computer based on diamond spin qubits.